Gravothel, Who Stalks

Flying, menace
When Gravothel enters the battlefield, put a prey counter on a number of target nontoken
creatures equal to the mana spent to cast it.
At the beginning of each combat, choose
a creature with a prey counter on it, its controller sacrifices it and discards a card, you put two
+1/+1 counters on Gravothel and draw a card.