Nemesis Prime

Nemesis Prime is a fictional character and major antagonist from the Transformers franchise. He is an evil clone of Optimus Prime, the leader of the Autobots. Sometimes, he is either affiliated with the Decepticons or a different character entirely with no faction but affiliated with Unicron.

Being a clone of Optimus, he possesses his powers and skills, as well as his appearance. However, unlike his good-hearted counterpart, Nemesis Prime is a cold-blooded being who lacks Optimus's morality and mercifulness.