Abbot of Keral Keep is a rare Creature — Human Monk card from Magic Origins (ORI), collector number 127. Current market price: $0.18 (foil $0.84), TCGplayer market prices via Scryfall.
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When this creature enters, exile the top card of your library. Until end of turn, you may play that card.