Yasuo vs Azir

Hit twice with Steel Tempest (Q), on minions if needed, to charge the whirlwind. Cast it during Sweeping Blade (E): the strike becomes a circle.

Keep moving before taking a trade: Way of the Wanderer (passive) builds your shield while you move, and it triggers on the first hit you take.

Chain Sweeping Blade (E) on different targets to reposition or dodge: each target has its own cooldown, so the spell comes back almost instantly.

Save Wind Wall (W) for a projectile that decides the teamfight, like Jinx's ult, rather than for poke: it blocks for 4 seconds, on a 25 to 17 second cooldown.

Watch for your allies' knock-ups: Last Breath (R) can be cast on any airborne champion, whether the knock-up comes from your whirlwind or Malphite's ult.

Stay out of range of his soldiers, not just of him: each Arise! (W) soldier attacks nearby enemies in his place.

Play hard before he hits level 6: without Emperor's Divide (R), he can't knock you back, and Shifting Sands (E), his only dash, has a 22 to 16 second cooldown.

When he has Emperor's Divide (R), spread out from your allies: the soldier wall knocks back every enemy across its width, then blocks the way.