Furious Bellow is a common Instant card from Dominaria United (DMU), collector number 126. Current market price: $0.20 (foil $0.17), TCGplayer market prices via Scryfall.
Target creature gets +3/+0 and gains first strike until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)