Skyclaw Thrash is a uncommon Artifact Creature — Lizard Warrior card from Alara Reborn (ARB), collector number 89. Current market price: $0.25 (foil $0.17), TCGplayer market prices via Scryfall.
Whenever this creature attacks, flip a coin. If you win the flip, this creature gets +1/+1 and gains flying until end of turn.