Volibear vs Cho'Gath

Cast Thundering Smash (Q) to charge at your target: your speed doubles when heading toward a champion, and your next auto stuns them.

Hit the same target twice with Frenzied Maul (W): the second hit, on the marked target, hits harder and heals you based on your missing health.

Cast Sky Splitter (E) where you're fighting and stay in the zone: when the lightning strikes, you gain a shield, and enemies hit are slowed.

To dive under a tower, cast Stormbringer (R) near it: on landing, you disable it for a few seconds, and you gain bonus health.

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.