Meria, Scholar of Antiquity is a rare Legendary Creature — Elf Artificer card from Dominaria United (DMU), collector number 305. Current market price: $0.26 (foil $0.38), TCGplayer market prices via Scryfall.
Tap an untapped nontoken artifact you control: Add {G}. Tap two untapped nontoken artifacts you control: Exile the top card of your library. You may play it this turn.