Rancor is a uncommon Enchantment — Aura card from Masters 25 (A25), collector number 186. Current market price: $1.43 (foil $1.69), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +2/+0 and has trample. When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.