Swiftblade Vindicator is a rare Creature — Human Soldier card from Double Masters (2XM), collector number 221. Current market price: $0.33 (foil $0.44), TCGplayer market prices via Scryfall.
Double strike (This creature deals both first-strike and regular combat damage.) Vigilance (Attacking doesn't cause this creature to tap.) Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)