Talk:Beta Part 1/@comment-24866585-20150814153611

Peridot was a gem that recently tried to rebel against homeworld. YD poofed her, and used her gem to power her robot that she named after this gem. Peridot had no control over this robot, she only powered it. This robot's design is based on one of the Crystal Gem's powerful fusions, Sardonyx.

That is my theory