Yasuo vs Gwen

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.

To hit her during Hallowed Mist (W), walk into the mist or wait for it to fade: from outside, you can't target her.

Take short trades before she lands 4 autos: each one adds a snip to Snip Snip! (Q).

Step out of the Needlework (R) line: she can recast it twice within 6 seconds, with three then five needles.

Answer her split push with two players rather than alone: A Thousand Cuts (passive) heals her on every auto against a champion.