Mordekaiser, the Iron Revenant

{b}{b}{b}: When Mordekaiser, the Iron Revenant
next attacks, select one creature your opponent controls. Mordekaiser, the Iron Revenant
can only be blocked by that creature for this turn.
If the artifact Acolytes of Sahn-Uzal is in play, Mordekaiser, the Iron Revenant returns to the battlefield untapped the next turn.
Twice he was slain, and THRICE he returned.