Barricade Breaker is a uncommon Artifact Creature — Juggernaut card from Aether Revolt (AER), collector number 144. Current market price: $0.11 (foil $0.20), TCGplayer market prices via Scryfall.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) This creature attacks each combat if able.