Alien X (Earth-3581)

Alien X is the Omnitrix's DNA sample of a Celestialsapien from the Forge of Creation.

Ben acknowledges Alien X as his most powerful alien, but concedes that transforming into him is not worth the cost.

Alien X has three personalities: Serena, the 'voice of love and compassion', Bellicus, the 'voice of rage and aggression' and Ben, the 'voice of reason'. All three of these voices combine to form Alien X's speech.

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