Void Winnower (Promo Pack) [Battle for Zendikar Promos] Zombie Elemental −3: You gain life equal

−3: You gain life equal to the greatest toughness among creatures you control

Prevent the assassination of JFK

(Remove that card from your deck before beginning a new game

Set: Eighth Edition Type: Creature — Bird Rarity: Rare Cost: {G} Flying

They only specify the consequences should you fail

Void Winnower (Promo Pack) [Battle for Zendikar Promos] Zombie Elemental −3: You gain life equalSet: Battle for Zendikar Promos Type: Creature Eldrazi Rarity: Mythic Cost: {9} Your opponents can't cast spells with even mana values. (Zero is even.) Your opponents can't block with creatures with even mana values. "Have you ever seen a world fall to its knees? Watch, and learn." Ob Nixilis