Sedraxis Specter is a uncommon Creature — Specter card from Modern Masters 2017 (MM3), collector number 181. Current market price: $0.13 (foil $0.36), TCGplayer market prices via Scryfall.
Flying Whenever this creature deals combat damage to a player, that player discards a card. Unearth {1}{B} ({1}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)