Primacron is the creator of Quintessa, her Quintessons, the pirate Star Seekers (BW), Unicron, and Tornedron. He is worse than all of them combined, even all the Predacons. His Oracle, who was once his assistant, summoned the Maximals and Predacons and transfixated them in beast mode until their task is done- defeat Tornedron, and kill Primacron. It took a teamwork effort of both teams to assassinate him.

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