Transformers Prime: Brother of Megatron [Megatron!Brother OC]

An alternate universe based in Transformers Prime where Megatron, the Gladiator of Kaon, has a younger brother who travelled the universe a few years after the war on Cybertron first began. One day on earth, Team Prime discovers the younger gladiator's pod and bring him back to base, where they soon discover who he r...