Alpharius, Alpha legion

At the beginning of combat on your turn Cloak a card from your hand.

Whenever a face-down creature you control dies, return it to the battlefield face down under its owner control if it’s a permanent card, then turn it face up.

Face-down creatures you control have {u}{b}: Turn this creature face up. If you can’t, exile it, then you may cast the exiled card without paying its mana cost.