Later in the Earth-year 2018, after the Earth Wars between Autobots and Decepticons ended and Optimus Prime was resurrected and exiled with Megatron and a new High Council - Starscream, Rodimus Prime, and Mistress of Flame - took over the reborn Cybertron after Unicron's second defeat by the new Matrix-bearer Rodimus; Megatronus has sent the Prime artifact known as the Enigma of Combination to spark a flame to the Combiner Wars, followed by the Titan Wars. He has also collaborated with Overlord, who arrived in Unicron's corpse to claim the Matrix of Chaos. After the clash between Trypticon and Fortress Maximus was over, Megatronus arrived and - at the presence of the renegade Megatron, Windblade, Victorion and Perceptor - murdered Optimus Prime again and claimed the Matrix of Leadership and the Enigma as fundamental parts of his plot to revive Solus Prime in the Well with a machine of his own.