Orion came back as Optimus Prime, thanks to Primus and the Primes deeming him worthy of the Matrix of Leadership. Megatron and Optimus fought for the first time, with Optimus defeating him in the end. Optimus accused Megatron of going down the same path as Sentinel and banished him and the High Guard from Iacon. Vowing for vengeance, Megatron said that it was not over, which marked the end of their deep friendship and turned themselves into bitter enemies. In the stinger, he renamed the...