Vingri, Plane Devoieror

+2: Put up to two +1/+1 counters on target creatures. If your target was a hydra, add three +1/+1 Instead.
-7: Gain life points equal to target hydra's toughness.
-13: You get an emblem with "At the beginning of your end step you gain a green hydra with X/X where X is the number of hydras you control."