Altaïr Ibn-La'Ahad (ACR-137) - Assassin's Creed: (Showcase) (Borderless)

First strike
Whenever Altaïr attacks, exile up to one target Assassin creature card from your graveyard with a memory counter on it. Then for each creature card you own in exile with a memory counter on it, create a tapped and attacking token that's a copy of it. Exile those tokens at end of combat.