Marrow Chomper

Marrow Chomper

Creature - Zombie Lizard | Power/Toughness: 3 / 3 (CMC 5)
Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.)
When Marrow Chomper enters the battlefield, you gain 2 life for each creature it devoured.