Tip
Do not get hit with Kai’Sa’s Icathian Rain(Q) by yourself and try to avoid her Void Seeker(W) as well! If Icathian Rain(Q) is on cooldown, close in with Rocket Jump[W] - Explosive Charge [E] combo to burst! Keep in mind that Explosive Charge [E] can be used while traveling with Rocket Jump [W]!
Tristana vs Kai'Sa

