Angel Death

Angel Death is the creator of all Trainsformers, even Megatrain who would later be called as her son. And she is the most dangerous Trainsformer in the universe, more than her son, Shutdown, and Unicrane. And she is more powerful than Empress Krone, Bradey O'Diesel, Alter, Bowser, Emperor Palpatine (Darth Sidious), Sauron, Thanos, Tirek, and The Storm King.

Origins
Being a ruler of Cybertrain, Angel Death builds herself up to become a seemingly benevolent figure for the Cybetranians and that she plans to destroy the human race. And she was involved with the great Trainsformers war. However, legendary knights The Insect Bots learn that she is not what they seemed to be and that she plans to drain energy from Earth to restore Cybertron with a machine utilized by a powerful staff, as Angel Death believes that the Earth is nothing more than a worthless planet. Unwilling to let the life on Earth suffer from the Creators' wrath, the Insect Bots rebelled against Angel Death. They stole the technology before hiding it away on Earth and branded her as a deceiver, much to Angel Death's fury.

Trivia

 * Angel Death makes her first appearance in Wrath of the Country.
 * She is the first female Train Prime.