Wukong vs Master Yi

Engage with Nimbus Strike (E), then Crushing Blow (Q): the dash gives you attack speed, and Crushing Blow shreds your target's armor before your Cyclone (R).

Stay in close when you fight: Stone Skin (passive) increases your armor and health regen as long as you're fighting champions or monsters.

Cast Warrior Trickster (W) to escape or dodge a key spell: you dash and turn invisible for a moment, and your clone stays in place to fool the enemy.

Recast Cyclone (R) right after the first: the spell can be cast twice, and each spin knocks nearby enemies into the air again.

Against Highlander (R), don't run alone: regroup with your team, because he gains speed and ignores slows.

If you have CC other than a slow, land it right after Alpha Strike (Q): during the strike, he's untargetable, and Highlander (R) ignores slows.

If you have CC, interrupt Meditate (W): he channels it to heal, more at low health, and to reduce the damage he takes.

Put pressure on his jungle early on: Master Yi is strongest once he has his items, and each stolen camp delays him.