Varek, Arrow's Shadow

+1: You may place an arrow counter on target creature. When a creature has four arrow counters on it, destroy it.
-1: Until end of turn, spells you cast have, "Sacrifice a creature as this spell is cast: Proliferate."
-9: You gain an emblem that says, "Whenever you cast a spell, you may choose one: Pay{1}{u}: Proliferate, Pay{2}{b}: Destroy target permanent"