At one time, Onyx Primal was one of the Tripredacus Council's more promising assassins, even if he was given to overblown melodrama. A glory-hog, Onyx quickly takes credit for any nearby successes and is even quicker to shuffle blame for his failures to others. However, a falling-out with the Predacons has left him with little choice but to join the Maximals. He doesn't like them, and they don't like him, but neither camp is in much position to refuse each others' help. He's an accomplished spy and assassin, though as a Maximal he has little opportunity to practice the latter skill.