Dregscape Sliver is a uncommon Creature — Sliver card from Modern Horizons (MH1), collector number 88. Current market price: $0.29 (foil $4.78), TCGplayer market prices via Scryfall.
Each Sliver creature card in your graveyard has unearth {2}. Unearth {2} ({2}: 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.)