Heroic Reinforcements is a uncommon Sorcery card from Foundations (FDN), collector number 241. Current market price: $0.18 (foil $0.24), TCGplayer market prices via Scryfall.
Create two 1/1 white Soldier creature tokens. Until end of turn, creatures you control get +1/+1 and gain haste. (They can attack and {T} this turn.)