Devil Z

Devil Z is an energy-being thing from the Masterforce portion of Generation 1.

Devil Z is a Decepticon entity which posseses vast power, but no true body of its own. It resembles an organic mass, encased in a glowing ball of energy. It commands the Earth-based Decepticons and their human Godmaster and Headmaster partners in its plans to destroy the Autobots.

=Fiction=

Masterforce Cartoon
Thousands of years ago, Devil Z stole the nine Godmaster Transtectors from the Z Nebula and placed them on Earth, in order to soak up the energy needed to power them.

Later, Devil Z came to lead the Decepticons on Earth. Lacking a physical form, it laid low until the mammoth Black Zarak came to Earth. Devil-Z possessed Black Zarak's body, killing Scorponok in the process. Devil-Z (now calling himself Devil Zarak) used his new powers to turn the Darkwings into true robots, unleashing them upon the Earth in order to destroy humanity's spirit. Devil Zarak was eventually lured into a final battle with God Ginrai. After taking heavy damage from the Autobot leader, Devil Zarak shifted into a new, powerful two-headed serpent mode. The serpent mode proved unable to stop God Ginrai's Fire Guts attack, however, and Devil Zarak was destroyed.

Zone
Black Zarak was revived as a thrall of the Destron demon Violen Jygar. Devil Z may or may not have been revived, as well.