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Overview

Role Plan

Danger Windows

Early Game

Power Spikes

Win Conditions

Cassiopeia vs Irelia MID Matchup Guide | LaneStomp

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Champion

Opponent

RoleGenerate matchup

Cassiopeia

VS

Mid

Irelia

Cassiopeia vs Irelia

Confidence mediumUpdated Jun 10, 2026

Overview

Control mid-range space to force extended trades with poison and repeated (E) damage.
Deny Irelia minion reset paths to limit her (Q) mobility and all-in windows.
Respect Irelia's stun (E) and (R) engage by holding (W) and maintaining spacing.

Trading pattern

Initiate trades by landing (Q) or (W) to poison, then follow with repeated (E) casts.
Hold (W) to punish or block (Q) dashes and escape attempts.
Avoid committing if (Q) misses or (W) is down to prevent Irelia's all-in resets.

Danger windows

Irelia is most dangerous with low-health minions for (Q) resets and active (E) or (R) marks.
Avoid extended fights when (W) or (R) is unavailable, as Irelia can engage or escape freely.
Punish Irelia if she commits without reset paths by stepping forward aggressively.

Early game

Use (Q) and (W) early to apply poison and zone before Irelia stacks passive.
Avoid fighting near low-health minions that enable (Q) resets.
Conserve mana to keep (W) ready to ground Irelia's dashes and prevent close engages.

Power spikes

Level 6 (R) enables punishing Irelia if she faces you during all-ins; track availability.
First mana/AP item boosts sustained damage and trading potential; pressure more confidently.
Respect Irelia's level 2 (Q) and (E) combo and level 6 (R) for her all-in threat.

Win conditions

Land poison and maintain spacing to force extended trades where (E) damage dominates.
Use (W) to ground Irelia's dashes and (R) to punish her when she faces you during all-ins.
Deny Irelia wave states that enable (Q) resets to reduce her mobility and all-in windows.

Tip: For Cassiopeia vs Irelia, read overview, trading pattern, and danger windows first for a fast Mid lane check.

Updated Jun 10, 2026New matchup