Dark-Dweller Oracle is a common Creature — Goblin Shaman card from Double Masters 2022 (2X2), collector number 106. Current market price: $0.33 (foil $0.37), TCGplayer market prices via Scryfall.
{1}, Sacrifice a creature: Exile the top card of your library. You may play that card this turn. (You still pay its costs. You can play a land this way only if you have an available land play remaining.)