Aardwolf's Advantage is a common Sorcery card from Unfinity (UNF), collector number 97. Current market price: $0.08 (foil $0.03), TCGplayer market prices via Scryfall.
Creatures you control get +2/+0 and gain alpha strike until end of turn. (A creature with alpha strike has first strike as long as it's blocking or being blocked by a creature that comes after it alphabetically.)