Bruce

He Stole my Scarf! — When Bruce enters, target
opponent reveals their hand. You choose a
nonland card from that player’s graveyard or
hand and exile it. You may cast that card for
as long as it remains exiled, and you may
spend mana as though it were mana of any
color to cast that spell.

Coward — Discard a card: Exile Bruce. Return
Bruce to the battlefield at the beginning of your
next upkeep.