Yasuo vs Ahri

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.

Keep minions between you and her: Charm (E) stops on the first enemy hit, and without it her burst lands far less often.

If you can only dodge one pass of Orb of Deception (Q), dodge the return: it deals true damage, which your resistances don't reduce.

Play hard once she has used the dashes of Spirit Rush (R): she has nothing left to escape with, and its cooldown is 140 to 100 seconds.

When she roams, avoid walking through the jungle alone: Charm (E) then Spirit Rush (R) let her catch an isolated target by surprise.