Yorick vs Swain

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.

Get out of the Nevermove (E) path as it comes back: it only roots on its return to Swain, then he can pull each rooted champion to him.

Leave the area as soon as Vision of Empire (W) appears: it strikes and slows 1.5 seconds later, and each champion hit gives him a Soul Fragment.

During Demonic Ascension (R), back off and hit from range if you can: he only drains nearby enemies, and his form ends when he stops draining.

If you have Grievous Wounds, apply it during Demonic Ascension (R): the drain heals him every second, and that healing keeps him alive.