Endless Obedience is a uncommon Sorcery card from The List (PLST), collector number M15-94. Current market price: $0.34, TCGplayer market prices via Scryfall.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Put target creature card from a graveyard onto the battlefield under your control.