Apex Altisaur is a rare Creature — Dinosaur card from The Lost Caverns of Ixalan Commander (LCC), collector number 232. Current market price: $8.95, TCGplayer market prices via Scryfall.
When this creature enters, it fights up to one target creature you don't control. Enrage — Whenever this creature is dealt damage, it fights up to one target creature you don't control.