Yahenni, Undying Partisan [The List]

Set: The List Type: Legendary Creature — Aetherborn Vampire Rarity: Rare Cost: {2}{B} HasteWhenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.Sacrifice another creature: Yahenni gains indestructible until end of turn. The time for subtlety is over, darling.