He has a black suit like color . His hands, legs, head and chest are colored blue. He has spikes on his hands and legs, similar to Four Arms. His has two black mask like thing around his green eyes. His Ultimatrix symbol is on his chest.
He appeared in the episode Basic Training. Ben transformed into him offscreen, so it wasn't heard Ben shout out his name. Ben used him to save Magister Hulca and Tack from an explosion.
He has super speed like XLR8. Also when he runs, his trail is also blue like XLR8. He is also strong enough to carry both Magister Hulca and Tack out of harm's way without losing any speed.
credits to Ben10 Wiki