Master Yi vs Camille

Cast Alpha Strike (Q) to dodge a spell or a burst: you're untargetable during the strike, and your autos lower its cooldown.

Cast Meditate (W) to tank a burst mid-teamfight: you take less damage, heal more at low health, and the time left on Highlander (R) is paused.

Activate Highlander (R) to chase: you gain move speed and attack speed, and slows no longer affect you.

Chain kills in teamfights: each takedown lowers the remaining cooldown of your basic spells, and extends Highlander (R) if it's active.

Take a trade after her Hookshot (E): it's her only dash before level 6, on a 16 to 12 second cooldown.

When she latches onto a wall with Hookshot (E), step out of her line: she has 1 second to leap, and the landing stuns nearby champions.

Back off after the first Precision Protocol (Q) attack: if the second comes after a short delay, it hits harder and part of it ignores your armor.

Save your spells to fight inside The Hextech Ultimatum (R) rather than to flee: the trapped target can't leave the zone while it lasts.