 He's appeared in "" as one of the patrons of the Bar With No Name.At some point in time between then and the fall of Norman Osborn, he was captured and sent to The Raft, where, during a visit by the Avengers Academy, there was a power failure caused by Hazmat (on the team), allowing the prisoners to run riot.Powderkeg almost crushes Hazmat and Mettle, but the timely intervention of Tigra saved them.