A promo figure and card for Krosmaster: Arena. He is a playable character. His flavor text reads: "Thunder-Bubble! Is your town assailed by Evil? Call Arty! He'll transform into a giant dragon and send Evil back home to its mama! But don't summon him if you particularly fond of your buildings - he has a tendency to break a lot of things while fighting..." His power is "Bububble" - Arty and the allied Krosmasters adjacent to him gain "Unfazed" during the adverse player's turns.