Arcbound Lancer is a uncommon Artifact Creature — Beast card from Darksteel (DST), collector number 98. Current market price: $0.37 (foil $1.38), TCGplayer market prices via Scryfall.
First strike Modular 4 (This creature enters with four +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)