These Chibis are coming from the Fusion Lab.
Only Gen0 Chibis have prestine DNA. As soon as scientists try to create new Chibis all sorts of random things can happen.
Generation X has slower cooldowns, but they can have very special traits and easily make up for their cooldowns in other ways.
Here a little assortment of how they can look like.
Over 6 billion combinations are possible so far.