Omega Leonidas, being Valentin's Leonidas in its evolved state, now has two large horns protruding from its muzzle, one smaller than the other, while two horns just off its eyebrows, giving it an appearance similar to Neo Dragonoid. Spikes run along his back and tail. Leonidas's general color scheme is set in various color tones based on its owner. Large claws on its three-fingered hands and two-toed feet make even Leonidas's body a valuable weapon.
In the final battle with Marduk, Vladitor had evolved to become Battle Ax Vladitor. To counter his foe, Leonidas evolved into Omega Leonidas via the energy of other Battle Brawlers's Bakugan. As Omega Leonidas, it is a level 3 but at some points, it has a level 2. After the battle, both Leonidas and Vladitor faded out of existence. Both Marduk and the player saddened at the loss of their partners, though the player was reunited with his Guardian Bakugan at the fountain in the Park, where they first met, through the last strength of Battle Ax Vladitor. It was then that the two vowed to be partners for as long as possible.
- Ability Cards
- Omega Eraser: Omega Leonidas +400 (Console)/200 (Handheld) Gs.