Yasuo vs Malphite

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.

Break Granite Shield (passive) with a cheap hit before taking a real trade: it absorbs 10% of his max health and triples his bonus armor.

If you deal magic damage, lean on it in trades: his only resistances come from Thunderclap (W), which only gives armor.

Trade when his mana runs low: Seismic Shard (Q) costs 70 to 90 mana, and it's his only ranged slow.

Once he hits level 6, only step up if he's visible: Unstoppable Force (R) comes from far away, nothing stops it, and its impact knocks every enemy in the area into the air.

When he has Unstoppable Force (R), spread out from your allies in teamfights: the impact knocks every enemy in the area into the air.