Arcbound Wanderer is a uncommon Artifact Creature — Golem card from Fifth Dawn (5DN), collector number 103. Current market price: $0.32 (foil $0.41), TCGplayer market prices via Scryfall.
Modular—Sunburst (This creature enters with a +1/+1 counter on it for each color of mana spent to cast it. When it dies, you may put its +1/+1 counters on target artifact creature.)