Weapon Surge is a common Instant card from Double Masters (2XM), collector number 150. Current market price: $0.11 (foil $0.20), TCGplayer market prices via Scryfall.
Target creature you control gets +1/+0 and gains first strike until end of turn. Overload {1}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")