Seraph of the Masses is a uncommon Creature — Angel card from Magic 2015 (M15), collector number 32. Current market price: $0.15 (foil $0.71), 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.) Flying Seraph of the Masses's power and toughness are each equal to the number of creatures you control.