Raid Bombardment is a uncommon Enchantment card from Wilds of Eldraine: Enchanting Tales (WOT), collector number 47. Current market price: $0.29 (foil $0.40), TCGplayer market prices via Scryfall.
Whenever a creature you control with power 2 or less attacks, this enchantment deals 1 damage to the player or planeswalker that creature is attacking.