Lumbering Battlement is a rare Creature — Beast card from Ravnica Allegiance Promos (PRNA), collector number 15s. Current market price: — (foil $0.57), 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.