Sergei Drevin (Earth-616)

Mantis is a monstrous freak of nature, villian and brother to Dragonfly.

Early life
Sergei Drevin, like his older brother Dimitri, was born in St. Petersburg. However once he discovered that his brother was a "Mutant freak" he ran away out of shame. Eventually he was discovered by Dr. Nicodemus a mad scientist and was coerced by him into being one of his assistants.

Becoming a Mantis
However due to Nicodemus's habit of using most of his assistants as his experiments Sergei soon found hmself regretting his choice of lifestyle. Nicodmus spliced Sergei's DNA with that ofa preying mantis. Sergei's skin became hard a chitinous, his jaws became tough mandibles, he sprouted anntenae and wings and two razor sharp admantium strength blades emerged from just above his wrists. Unfortunatley for Sergei as additional parts began to grow, his brain began to shrink, leading him to become a drooling imbecile, in otherwords a perfect minion for Nicodemus. Now known as Mantis he began to work for the good doctor as one of his top henchmen, commanding vast legons of robot armies to attack his enemies. One can only wonder: What was that guy thinking when he put an idiot in charge of his shock troops? In any case He continued to use Mantis for his own twisted ends. However Manis has a habit of attacking his brother on sight even if he's in the middle of doing something incredibly important.

Earth 2149
Manis can be seen preparing a large group of soldiers against the swarm of zombies trying to brake down the door to Dr.Nicodemuss' lab. His final fate remains unkown.

Earth T
Following the events of Dark star egatron found himself in need of troops. Unfortunatley he soon found out that fleshies make poor soldiers so he kidnapped Dr. Nicodemus, his assitant Winston Riker and Mantis and ordered them to construct a machine that could transform humans into techno-organic transformers. Once he device reached completion the Decepticons tested it out on Mantis. Luckily for mantis it worked and he became transforming into a preying mantis of abominable size. He was added to the ranks of Insecticons as an extra soldier.