Mordekaiser, Iron Revenant

Indestructible, Trample, Challenger (When Mordekaiser, Iron Revenant declares an attack, you can choose an enemy creature on the battlefield to strike, by dragging them into the blocking position.)

If a nontoken artifact or artifact creature enters the graveyard, create a token copy of it in the battlefield.

Whenever Mordekaiser deals combat damage to a player, gain Soul counters equal to the damage dealt. On your upkeep you may discard 4 Souls to exile a target creature.