Mordekaiser, Iron Revenant

Indestructible, Menace, Trample

When you attack, you may create a token copy of a creature exiled by Immortal Bastion that is tapped and attacking, except that it is an artifact spirit in addition to its other types.

At the beginning of combat on your turn, Mordekaiser gains +X/+X for until the end of turn, where X is the number of blocking creatures.