Irelia vs Mordekaiser Matchup Guide

Irelia

Irelia

Top Lane Skirmisher

The Blade Dancer -- mobile duelist who stacks Ionian Fervor off spell hits and chains Bladesurge resets through marked targets

VS
Mordekaiser

Mordekaiser

Top Lane Juggernaut

The Iron Revenant -- AP juggernaut who activates Darkness Rise through spell rotations, shields with Indestructible, and isolates targets in Realm of Death

VerdictSkill matchup EarlySkill Matchup MidMordekaiser Favored LateSkill Matchup Updated Jul 20, 2026

Champ Select Cheat Sheet — Irelia vs Mordekaiser

Runes
ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. is non-negotiable; the forced extended fight inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. stacks it to full every time. TriumphTriumphTakedowns restore 5% of your missing health and grant an additional 20 gold. refunds HP after surviving the isolation, Legend: AlacrityLegend: AlacrityTakedowns on enemies grant permanent Attack Speed. counters Mordekaiser's Rylai's slow kiting, Last StandLast StandDeal more damage to champions while you are low on health. rewards fighting at low HP where the stat-steal puts Irelia.
Secondary: Resolve secondary: Second WindSecond WindAfter taking damage from an enemy champion heal back some missing health over time. ticks healHealRestores Health and grants Move Speed to you and target allied champion. through ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. poke and Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn ticks, OvergrowthOvergrowthGain permanent max health when minions or monsters die near you. banks HP that cushions the Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. stat-steal. Shards: attack speed, adaptive force, flat health.
Summoners
FlashFlashTeleports you a short distance toward your cursor. + IgniteIgniteDeals true damage over time to target enemy champion and reduces healing effects on them for the duration. or TeleportTeleportAfter a brief channel, become untargetable and travel to an allied unit. Upgrades into Unleashed Teleport, which significantly increases travel speed.
Core Build
BotRK first always; the percent-HP passive and lifesteal let Irelia contest Mordekaiser's stat-check inside Realm of Death where raw sustain decides the duel. Wit's End second layers MR against his entire AP kit and stacks on-hit with Ionian Fervor to shred Indestructible shield faster. Mercury's Treads shorten Death's Grasp lockout and add MR against Obliterate poke.
Trade Pattern
Q (minion) > Q (minion) > E > Q > AA > W > Q (minion out)
Stack passive through minion dashes, stun with E on the marked target, burst with empowered autos, W absorb his answer, then Q a minion to disengage.
Danger Levels
Respect Mordekaiser at level 6

Matchup Dynamics

How This Matchup Works

Mezouze rates this Skill with medium-hard laning. The lane hinges on dodging E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area.: sidestep it and Mordekaiser loses his primary engage tool, opening a window to punish with full Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. stacks. At level 2 with ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions., an all-in kills if he wastes his pull. Pre-6 tilts slightly his way, but his vulnerability during W - IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. downtime gives Irelia openings. Post-6, R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. strips minion access and forces a raw stat-check; stay aware of lane position so his ult never catches you without an escape path. QSS no longer removes the banishment, so outplay or outstat him inside the realm.

Early Game (1-5)

Skill Matchup - Levels 1-6: skill-dependent but leans toward Mordekaiser per Mezouze. Stack P - Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. before engaging; at level 2 with ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions., dodge E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. and all-in for a kill if he picked E second. Punish him when W - IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. is on cooldown. Avoid standing in the wave he targets with Q - ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. unless you need to deny the isolated-target bonus.

Mid Game (6-11)

Mordekaiser Favored - 7-13: Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. strips minion wave access and every BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes. reset target, forcing a raw stat-check that Mordekaiser's stolen stats and IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. shield cycling tip his way. Track his R timer before pushing past river. BotRK completion claws the isolation duel back toward even through percent-HP shred and lifesteal that matches his W healHealRestores Health and grants Move Speed to you and target allied champion..

Late Game (12+)

Skill Matchup - 14+: with BotRK and Wit's EndWit's EndResist magic damage and claw your way back to life. finished, the side-lane duel is winnable. Mordekaiser's teamfight threat with R remains dangerous, but Irelia's split-push and flank potential offer a different win path.

Key Interactions

  • Dodging E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. opens the all-in: His E pull is the gateway to his full combo; sidestep it laterally and the rest of his kit lacks a way to hold Irelia in place. With the pull on cooldown, commit to an extended fight while Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. is stacked.
  • Q - ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. hitbox narrows near the base: The mace swing is thinner at close range and wider at the tip. During an all-in, staying tight to Mordekaiser makes his Q easier to sidestep; at range, the wider end is harder to avoid.
  • W - Defiant DanceW – Defiant DanceIrelia charges a strike that deals more damage as she charges. She takes reduced physical damage during the charge. absorbs inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns.: Channel W during Mordekaiser's burst rotation inside R to cut incoming damage. The damage reduction buys time for Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. autos and BotRK on-hit to win the stat-check.
  • R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. strips minion access: Inside the realm, Q - BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes. has no minions to reset on; the fight becomes a pure 1v1 stat-check. Avoid getting pulled into R when behind in items or HP, and keep track of his ult cooldown before pushing up.

Irelia

Strengths

  • Level 2 all-in with ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. can kill Mordekaiser if E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. is dodged
  • Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. plus BotRK on-hit scales into a strong side-lane duel once the first item finishes
  • W - Defiant DanceW – Defiant DanceIrelia charges a strike that deals more damage as she charges. She takes reduced physical damage during the charge. damage reduction absorbs a portion of his burst inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns.

Weaknesses

  • R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. removes minion wave and strips all Q reset targets, forcing a raw stat-check
  • QSS no longer cleanses his ult; no item-based escape exists
  • Pre-6 the lane tilts toward Mordekaiser even though it is rated Skill; falling behind early compounds the post-6 problem

Mordekaiser

Strengths

  • R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. isolates Irelia from her minion wave, removing BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes. resets and forcing a stat-check
  • P - Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn aura adds sustained damage during extended trades that Irelia cannot avoid in melee
  • W - IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. gives a shield and optional healHealRestores Health and grants Move Speed to you and target allied champion., making short trades inefficient against him

Weaknesses

  • E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. is slow and telegraphed; a missed pull leaves him without engage for a long cooldown
  • Q - ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. is easier to dodge at close range due to its narrow base hitbox
  • Without W shield, he is exposed; aggressive all-ins during that cooldown window punish him hard

Power Curve Comparison EXPERIMENTAL

Power Curve Visualization

Win Conditions

Irelia's Win Condition

  • Dodge E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. and all-in at level 2 with ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. stacking; the kill is live if his pull misses
  • Punish W - IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. cooldown windows; he is exposed without his shield and healHealRestores Health and grants Move Speed to you and target allied champion.
  • Stack Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. before committing; fighting at zero passive stacks concedes the trade
  • Track R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. cooldown and avoid overextending when it is available

Mordekaiser's Win Condition

  • Auto Irelia down with Lethal TempoLethal TempoAttacking an enemy champion grants you Attack Speed, up to 6 stacks. At max stacks, deal bonus adaptive damage On-Attack. and P - Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn; walk into melee rather than fishing for Q or E against her dashes
  • Rush Bramble VestBramble Vest30 ArmorThornsWhen hit by an Attack, deal magic damage to the attacker and apply 40% Wounds for 3 seconds if they are a champion. to cut her healing, then Rylai's Crystal ScepterRylai's Crystal ScepterAbilities slow enemies to slow her through passive burn and lock her in trading range
  • Use R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. when Irelia is away from minions to force an auto-attack stat-check with no Q reset targets
  • Build Nashor's ToothNashor's ToothIncreases Attack Speed, Ability Power, and Cooldown Reduction late to sustain auto-attack pressure without depending on skillshots she dodges

Laning Phase Guide

Level/Phase Irelia Mordekaiser
Level 1 Q - BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes. first. Use minion Qs to stack P - Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. and manage the wave; avoid extended autos into Mordekaiser's melee range without passive stacks. Q - ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. first. Start Doran's RingDoran's RingGood starting item for casters. Shove the wave with Q on grouped minions. Lethal TempoLethal TempoAttacking an enemy champion grants you Attack Speed, up to 6 stacks. At max stacks, deal bonus adaptive damage On-Attack. starts ramping from the first auto; look to auto-trade when Irelia walks up without Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. stacks.
Level 2 E - Flawless DuetE – Flawless DuetIrelia sends out two blades which converge on each other. Enemies caught in between are damaged, stunned and Marked. second (alt: take E first, then Q). With ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions., all-in if Mordekaiser takes E second and you dodge his pull. Full passive stacks with a landed E stun set up the kill. E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. second. The pull sets up the combo, but against Irelia do not fish for it if she has Q up to dodge. Auto her down in melee instead; she is weak at zero passive stacks.
Level 3 Level 3 adds Defiant DanceW – Defiant DanceIrelia charges a strike that deals more damage as she charges. She takes reduced physical damage during the charge.. Hold the channel for Obliterate's downswing — absorbing that hit flips short trades. Otherwise poke with E when Mordekaiser walks up for last-hits. W - IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. completes the kit. Shield-healHealRestores Health and grants Move Speed to you and target allied champion. cycling wins extended auto-attack trades. Keep auto-attacking through Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn rather than switching to a spell-reliant pattern.
Level 4-5 Keep stacking passive through minion Qs and look for E angles when he walks up for Q farm. Avoid standing in his Q target area unless you are trading the isolated bonus damage for wave position. Bramble VestBramble Vest30 ArmorThornsWhen hit by an Attack, deal magic damage to the attacker and apply 40% Wounds for 3 seconds if they are a champion. purchase window. Grievous wounds cuts Irelia's ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. healing. Keep shoving and auto-trading when she walks into melee range; Lethal TempoLethal TempoAttacking an enemy champion grants you Attack Speed, up to 6 stacks. At max stacks, deal bonus adaptive damage On-Attack. outscales her short trades.
Level 6 R - Vanguard's EdgeR – Vanguard's EdgeIrelia fires a massive number of blades that explode outward upon hitting an enemy champion. Enemies hit by the blades are damaged and Marked. adds burst and marks, but the key concern is his R. Do not push past river if R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. is up; getting caught without minion access is a death sentence. R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. is the defining spike. Catch Irelia away from minions to strip all Q reset targets and force the auto-attack stat-check. Stolen stats plus Lethal TempoLethal TempoAttacking an enemy champion grants you Attack Speed, up to 6 stacks. At max stacks, deal bonus adaptive damage On-Attack. autos close the fight.
Level 7-8 BotRK components begin landing. Recurve Bow on-hit starts improving the stat-check inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns.; still respect his ult timer and lane position. Rylai's Crystal ScepterRylai's Crystal ScepterAbilities slow enemies components landing. The Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. slow will make it near-impossible for Irelia to disengage from auto-attack trades once the item completes.
Level 9 Q reaches max rank; BotRK nears completion. The 1v1 starts evening out as on-hit sustain offsets his shield cycling. Punish W downtime aggressively. Rylai's completed. Passive slow locks Irelia in Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. range during every trade. Build toward Experimental HexplateExperimental HexplateIncreases maximum Mana as Mana is spent next for movement speed and ability haste.

Power Spikes

Level Spikes

Irelia Mordekaiser
Level Description Level Description
2 Major ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. all-in kills Mordekaiser if E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. is dodged and he took E second 2 Minor E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. pickup enables Q follow-up and P - Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. stacking
3 Minor Full kit online; W - Defiant DanceW – Defiant DanceIrelia charges a strike that deals more damage as she charges. She takes reduced physical damage during the charge. absorbs his Q burst during forced trades 6 Major R - Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. isolates Irelia from minions and steals stats; the defining spike
6 Minor R - Vanguard's EdgeR – Vanguard's EdgeIrelia fires a massive number of blades that explode outward upon hitting an enemy champion. Enemies hit by the blades are damaged and Marked. adds burst and marks, but his R counters with isolation

Item Spikes

Irelia Mordekaiser
Item Description Item Description
Blade of the Ruined KingBlade of The Ruined KingDeals damage based on target's Health, can steal Move Speed Mandatory rush; BotRK lifesteal outheals Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn ticks while the percent-HP shred chews through IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. shield before Mordekaiser can consume it Bramble VestBramble Vest30 ArmorThornsWhen hit by an Attack, deal magic damage to the attacker and apply 40% Wounds for 3 seconds if they are a champion. Early grievous wounds cuts Irelia's ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. and BotRK healing before she sustains through trades Mordekaiser should win on raw damage
Wit's EndWit's EndResist magic damage and claw your way back to life. MR blankets ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. and Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn; the on-hit passive adds mixed damage that Mordekaiser's armor-heavy builds cannot efficiently itemize against Rylai's Crystal ScepterRylai's Crystal ScepterAbilities slow enemies First completed item; P - Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. slow locks Irelia in burn range during every extended trade and punishes her for staying in melee
Mercury's TreadsMercury's TreadsIncreases Move Speed and reduces duration of disabling effects Tenacity shortens E pull lockout and MR stacks with Wit's EndWit's EndResist magic damage and claw your way back to life. against his AP damage Experimental HexplateExperimental HexplateIncreases maximum Mana as Mana is spent Movement speed burst and ability haste let Mordekaiser run Irelia down after R engagement; stat-ball that complements the auto-attack pattern
Sterak's GageSterak's GageShields against large bursts of damage Lifeline shield triggers mid-Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. when Mordekaiser's stolen stats and ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. burst nearly finish Irelia off, buying two more auto cycles to win the attrition Nashor's ToothNashor's ToothIncreases Attack Speed, Ability Power, and Cooldown Reduction Built specifically vs spell-dodgers like Irelia; on-hit damage lets Mordekaiser auto her down without needing to land Q. Trade-off: no health

Best Build for Irelia

Starting Items

Core Items

BotRK first always; the percent-HP passive and lifesteal let Irelia contest Mordekaiser's stat-check inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. where raw sustain decides the duel. Wit's EndWit's EndResist magic damage and claw your way back to life. second layers MR against his entire AP kit and stacks on-hit with Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. to shred IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. shield faster. Mercury's TreadsMercury's TreadsIncreases Move Speed and reduces duration of disabling effects shorten Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. lockout and add MR against ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. poke.

Runes

Primary: ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. is non-negotiable; the forced extended fight inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. stacks it to full every time. TriumphTriumphTakedowns restore 5% of your missing health and grant an additional 20 gold. refunds HP after surviving the isolation, Legend: AlacrityLegend: AlacrityTakedowns on enemies grant permanent Attack Speed. counters Mordekaiser's Rylai's slow kiting, Last StandLast StandDeal more damage to champions while you are low on health. rewards fighting at low HP where the stat-steal puts Irelia.

Secondary: Resolve secondary: Second WindSecond WindAfter taking damage from an enemy champion heal back some missing health over time. ticks healHealRestores Health and grants Move Speed to you and target allied champion. through ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. poke and Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn ticks, OvergrowthOvergrowthGain permanent max health when minions or monsters die near you. banks HP that cushions the Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. stat-steal. Shards: attack speed, adaptive force, flat health.

Summoner Spells

FlashFlashTeleports you a short distance toward your cursor. + IgniteIgniteDeals true damage over time to target enemy champion and reduces healing effects on them for the duration. or TeleportTeleportAfter a brief channel, become untargetable and travel to an allied unit. Upgrades into Unleashed Teleport, which significantly increases travel speed.

Priority Build Path

1
Blade of the Ruined King

BotRK lifesteal and percent-HP shred let Irelia contest Mordekaiser inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. where IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. shield cycling otherwise wins the attrition war

2
Wit's End

MR absorbs ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. poke and Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn; on-hit stacks with Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. to burst through IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. before he can consume the shield for a healHealRestores Health and grants Move Speed to you and target allied champion.

3
Mercury's Treads

Tenacity and MR stacking; shortens E pull lockout duration

4
Sterak's Gage

Shield absorbs burst when the Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. stat-check is tight

5
Death's Dance

Bleed passive converts Mordekaiser's ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. burst into a DoT Irelia can healHealRestores Health and grants Move Speed to you and target allied champion. through; the sustained fight inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. stacks the bleed cleanup naturally

6
Guardian Angel

If Mordekaiser catches Irelia with Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. in a teamfight, the revive stalls long enough for allies to collapse once the realm expires

Situational Adjustments

  • Plated SteelcapsPlated SteelcapsEnhances Move Speed and reduces incoming basic attack damage: enemy team is heavily AD and the MR from Mercury's TreadsMercury's TreadsIncreases Move Speed and reduces duration of disabling effects is not needed
  • Maw of MalmortiusMaw of MalmortiusGrants bonus Attack Damage when Health is low: multiple AP threats on the enemy team beyond just Mordekaiser

Key Patterns

Lethal Combos

Irelia Full Combo (Level 6+):

E > Q > Q > AA > W > Q > R

Commit only when Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. is dodged. E stun pins Mordekaiser for marked Q resets, W channels through ObliterateQ – ObliterateMordekaiser smashes the ground with his mace dealing damage to each enemy struck. Damage is increased when hitting a single enemy. retaliation, R finishes with burst and extra marks before he can activate IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. shield.
Mordekaiser Escape/Counter Combo:

E > Q > AA > AA > AA > R

Pull into isolated Q, auto for Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. activation, then R to lock in the stat advantage with stolen stats.

Trading Combos

Irelia Short Trade:

Q (minion) > Q (minion) > E > Q > AA > W > Q (minion out)

Stack passive through minion dashes, stun with E on the marked target, burst with empowered autos, W absorb his answer, then Q a minion to disengage.
Mordekaiser Quick Trade:

E > Q > W

Pull for the isolated Q hit, then shield to absorb the response; short and repeatable.

Lethal Thresholds

  • Irelia Kill Range: Level 2 kill is available with ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. if his E misses and he started E second; post-BotRK, the 1v1 inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. becomes a real fight.
  • Mordekaiser Kill Range: Auto-attack Irelia down at all stages; spells are unreliable vs her dashes. Bramble VestBramble Vest30 ArmorThornsWhen hit by an Attack, deal magic damage to the attacker and apply 40% Wounds for 3 seconds if they are a champion. on first back cuts her healing. Rylai's completion locks her in Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. range. Nashor's ToothNashor's ToothIncreases Attack Speed, Ability Power, and Cooldown Reduction late-game removes all reliance on landing Q.
  • Critical Levels: 2 (Irelia all-in window) / 6 (Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. online) / 9 (Q max rank, BotRK nearing completion)

Level by Level Game Plan

Level Primary Goal Lane Position Trading Opportunities Kill Windows Setup Opportunities
1 Stack Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit. and manage wave Near your minion wave for Q reset access Q minions to build passive; avoid raw melee autos without stacks Low Watch which ability Mordekaiser starts
2 All-in if E - Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. is dodged Close enough to engage but ready to sidestep laterally Land E stun into Q resets with full ConquerorConquerorGain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions. stacking High if his E misses Confirm he took E second before committing
3 Use W to absorb his Q burst Near minions for disengage Q targets Channel W through his Q; punish with E when he steps forward to farm Medium Track W - IndestructibleW – IndestructibleMordekaiser stores damage he deals and takes to create a shield. He may consume the shield to heal. cooldown before engaging
4-5 Farm toward BotRK components Avoid standing in the wave he targets with Q unless trading the iso bonus Short E stun trades when his W is down Low Watch for jungle pressure before extended trades
6 Respect Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. Do not push past river when his R is up Only commit when you are confident in the stat-check Low unless ahead in gold Track his R cooldown before any all-in
7-8 Complete BotRK components Safe farm; avoid getting caught without minions nearby Recurve Bow on-hit improves short trades; still respect his R timer Medium if his R is down Ward deep to see ganks before overextending
9+ BotRK completion spike Side lane with minion access for Q resets On-hit sustain makes extended trades viable; punish W downtime hard Medium The stat-check inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. is now closer to even
Mid Game (11-16) Split-push with item advantage Side lane; group only for key objectives BotRK plus Wit's EndWit's EndResist magic damage and claw your way back to life. wins the duel outside of his R; inside R, channel W and fight through it Medium to High if ahead Track his R cooldown; engage when it is down
Late Game (16+) Flank or split Side lane pressure or teamfight flank angle Full build with Wit's EndWit's EndResist magic damage and claw your way back to life. wins the 1v1 stat-check even inside Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. High in the side lane Avoid getting caught by R in a grouped setting where allies cannot help

First Back Goals

Teamfight Tips

Aspect Irelia Mordekaiser
Primary Role Bait Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. onto yourself so Mordekaiser cannot isolate your ADC; fight him inside with BotRK sustain, or flank the backline once his R is committed elsewhere. Isolation threat. R removes the most dangerous enemy from the fight for 7 seconds, then returns with stolen stats.
Target Priority Carries on the far side of the fight once Mordekaiser commits Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. on someone else
Mordekaiser after both Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. and Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. are spent; his threat collapses without those tools
Anyone pulled out of position by Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. who lands near a minion wave for BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes. cleanup		 Irelia or whoever poses the biggest threat to his backline
Squishy targets caught without mobility once E pull lands
Anyone isolated from their team where R guarantees the 1v1
Objective Control Drop Vanguard's EdgeR – Vanguard's EdgeIrelia fires a massive number of blades that explode outward upon hitting an enemy champion. Enemies hit by the blades are damaged and Marked. wall across the pit entrance to block Mordekaiser's Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. angle and deny his approach to the smiteSmiteDeals true damage to a monster or minion. contest
Stay near jungle camps or a wave so BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes. has escape targets if Mordekaiser pops Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. during the objective fight		 R the enemy jungler during a smiteSmiteDeals true damage to a monster or minion. contest to remove them from the objective
E pull into the pit choke to start the teamfight on his terms
Positioning Approach from fog and use Vanguard's EdgeR – Vanguard's EdgeIrelia fires a massive number of blades that explode outward upon hitting an enemy champion. Enemies hit by the blades are damaged and Marked. marks to BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes. past Mordekaiser's frontline into the backline without passing through his Death's GraspE – Death's GraspMordekaiser pulls all enemies in an area. cone
Position near jungle camps or a wave so Realm of DeathR – Realm of DeathMordekaiser drags his victim to a different dimension with him and steals a portion of their stats. If he kills them, he keeps the stats until the victim respawns. cannot trap Irelia without escape targets for BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes.		 Front-to-back positioning; use E pull on whoever steps forward
Hold R for the high-value target rather than using it early on a tank
Other Tips If Mordekaiser Rs you in a teamfight, channel W through his burst rotation and fight back with Ionian FervorP – Ionian FervorWhen Irelia strikes enemies with spells she gains stacking bonus Attack Speed. At maximum stacks she also gains bonus damage on hit.; your team fights a 4v4 while you keep him occupied
Land E - Flawless DuetE – Flawless DuetIrelia sends out two blades which converge on each other. Enemies caught in between are damaged, stunned and Marked. on multiple enemies at the start of a teamfight for maximum Q reset chains		 Save R for after Irelia commits to a fight with BladesurgeQ – BladesurgeIrelia dashes forward to strike her target, healing herself. If the target is Marked or dies to Bladesurge, its cooldown refreshes.; once she dashes in, she cannot escape the isolation
E pull into Q on grouped enemies activates P - Darkness RiseP – Darkness RiseMordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters. burn on all of them