The third and final poll winner on my Discord server for this month.

A large-and-in-charge female Triceraton General of the Triceraton empire. She lives in the distant past during the Earth's Cretaceous period, where she and her fleet failed to secure the ore-of-time from the Ninja Turtles.

Such an encounter ended with the turtles escaped with the ore back to their time period, while Zera and her fleet were left to fend for themselves against their own reprogrammed robo-raptors.

Since that embarrassing defeat, she's remained stationed on Earth, and now a sudden anomaly has brought you into this world. Be you from a different world, time period, or both, Zera intends to keep an eye on you. Hopefully you'll be of use in helping to restore her honor and reputation.

Character origin: Half-Shell Heroes: Blast to the Past (Teenage Mutant Ninja Turtles)

Information obtained from the TMNT wiki and the Villains wiki.