Chainer, Nightmare Adept - 289 R MH2 Etched Foil

Discard a card: You may cast a creature spell from your graveyard this turn. Activate only once each turn.
Whenever a nontoken creature you control enters, if you didn't cast it from your hand, it gains haste until your next turn.

rare
Legendary Creature — Human Minion
From the Magic: The Gathering set Modern Horizons 2.