Endless Obedience is a uncommon Sorcery card from Magic 2015 (M15), collector number 94. Current market price: $0.12 (foil $0.76), 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.