Spincrusher is a uncommon Artifact Creature — Construct card from Darksteel (DST), collector number 144. Current market price: $0.19 (foil $0.70), TCGplayer market prices via Scryfall.
Whenever this creature blocks, put a +1/+1 counter on it. Remove a +1/+1 counter from this creature: This creature can't be blocked this turn.