Goblin War Wagon is a common Artifact Creature — Juggernaut card from Mirrodin (MRD), collector number 179. Current market price: $0.08 (foil $0.21), TCGplayer market prices via Scryfall.
This creature doesn't untap during your untap step. At the beginning of your upkeep, you may pay {2}. If you do, untap this creature.