Tip
Irelia will come in for a kill with (Q) and stun with (E) when she has 5 stacks (P) up. Retreat if your allied minions are low on health, and use [E] to stun her if she manages to close in.
Heimerdinger vs Irelia

Irelia will come in for a kill with (Q) and stun with (E) when she has 5 stacks (P) up. Retreat if your allied minions are low on health, and use [E] to stun her if she manages to close in.