Lumbering Battlement is a rare Creature — Beast card from Ravnica Allegiance (RNA), collector number 15. Current market price: $0.29 (foil $0.69), TCGplayer market prices via Scryfall.
Vigilance When this creature enters, exile any number of other nontoken creatures you control until it leaves the battlefield. This creature gets +2/+2 for each card exiled with it.