Protective Response is a uncommon Instant card from Lorwyn Eclipsed (ECL), collector number 29. Current market price: $0.14 (foil $0.29), 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.) Destroy target attacking or blocking creature.