Overwhelm is a uncommon Sorcery card from Foundations Jumpstart (J25), collector number 697. Current market price: $0.27, 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.) Creatures you control get +3/+3 until end of turn.