Zaahen vs Mordekaiser

Cast The Darkin Glaive (Q) for an auto that strikes twice and heals you, then recast the spell: your next auto knocks your target into the air.

Cast Dreaded Return (W) at a target out of your range: the stab damages them, then pulls them toward you for a second hit.

Place Aureate Rush (E) so your target is at the edge of the slice: at the tip, they take bonus damage based on their max health.

Hit champions with your autos and spells: each Determination stack from Cultivation of War (passive) gives you attack damage, and at max stacks, you can revive.

Cast Grim Deliverance (R) in the middle of a fight: you take less damage as you rise, then your dive heals you based on the damage dealt to champions.

Stay near your minions against Obliterate (Q): its damage increases when it hits only one enemy.

Dodge Death's Grasp (E): it pulls you toward him, into his other spells, and it has a 16 to 8 second cooldown.

If you have range, kite him: Mordekaiser has no dash, and only Death's Grasp (E), which pulls you in, closes the distance.

In Realm of Death (R), save your mobility spells to escape him rather than for the duel: he steals part of your stats, and keeps them if he kills you.