Corki vs Ezreal

Poke with Phosphorus Bomb (Q): the area and the champions hit are revealed for a few seconds, enough to follow an opponent into a brush.

Start your trades with Gatling Gun (E): it lowers the armor and magic resist of the enemies hit while it fires.

Save the Big One, every third missile of Missile Barrage (R), for a champion: it deals much more damage than the other missiles.

Save Valkyrie (W) to escape rather than to engage: without it, you're vulnerable for its 20 to 12 second cooldown.

Only engage with Special Delivery if your team can follow: after using it, as after Valkyrie (W), you're vulnerable.

Stay behind your minions: Mystic Shot (Q) hits the first enemy, and each time it hits you, all his cooldowns go down.

Go all-in when he has used Arcane Shift (E) to move forward: it's his only escape, on a 26 to 14 second cooldown.

Look for head-on teamfights, behind your frontline: Mystic Shot (Q) stops on the first enemy hit, and Essence Flux (W) on the first champion.

At low health, beware of Trueshot Barrage (R) even far from him: the shot crosses the whole map and hits every unit in its line.