Violet, Sanguine Princess

: Whenever an opponent loses life, create that many blood tokens. Sacrifice a blood token: target vampire has +1/+1 until end of turn.
+1: Violet, Sanguine Princess deals 3 damage to any target. You gain 3 life if a permanent leaves the battlefield this way.
-10: Creatures you control get +X/+X, trample, flying, and lifelink until end of turn. X is equal to the number of blood tokens you control.