Yorick vs Cho'Gath

Hit a champion or last-hit a minion with Last Rites (Q) to dig a grave: with three graves nearby, recast the spell to raise Mist Walkers from them.

Hit your target with Mourning Mist (E): your nearby graves keep raising Mist Walkers, the target loses armor, and your units rush toward them.

Trap your target in Dark Procession (W): the wall blocks enemies but not your allies, and your Mist Walkers hit them in the meantime.

After 10 seconds, recast Eulogy of the Isles (R) to send the Maiden of the Mist to push the nearest lane, but you lose a big part of your power.

Keep moving against him: Rupture (Q) strikes an area on the ground, and an enemy standing still takes a knock-up, damage and a slow.

Punish him when he goes for last hits: Carnivore (passive) restores health and mana for each unit he kills, and he lasts a long time in lane if you let him farm.

If you have range, keep your distance: his kit has no dash, only the slows from Rupture (Q) and Vorpal Spikes (E).

Don't stay in melee range at low health when Feast (R) is up: its true damage ignores your resistances, even if you're a tank.