Ramjet is a Decepticon and Herald of Unicron from the Transformers: Cybertron comics by Fun Publications.
Background[]
Ramjet was once Unicron's most dangerous lieutenant and a sadistic monster who enjoyed helping his master destroy many realities throughout the multiverse. Ramjet was granted godlike interdimensional powers, often using them to torture and wipe out entire planets as a means of announcing the inevitable outcome of Unicron ending their universe. However, after Unicron's physical body collapsed into a massive black hole, Ramjet found himself stranded in unspace. Unfortunately for Ramjet, he was not alone there as he would encounter some ancient evil entities of indescribable power. Ramjet would endure an eternity of torment at their hands, repeatedly being destroyed and recreated countless times. Eventually growing bored of him, Ramjet would be sent back to reality. This experience would drive Ramjet completely insane, in addition to making him far more powerful than before and nearly indestructible.