Fowl Strike is a common Instant card from Modern Horizons 3 (MH3), collector number 155. Current market price: $0.13 (foil $0.09), TCGplayer market prices via Scryfall.
Destroy target creature with flying. Reinforce 2—{2}{G} ({2}{G}, Discard this card: Put two +1/+1 counters on target creature.)