Fell Beast of Mordor (Borderless) (Surge Foil) (LTC-557) - Tales of Middle-earth Commander Foil

Flying
Devour 1 (As this creature enters, you may sacrifice any number of creatures. It enters with that many +1/+1 counters on it.)
Whenever this creature enters or attacks, target opponent loses X life and you gain X life, where X is the number of +1/+1 counters on it.