This is 1purpleflower here, and I don't know if any of you guys of thought of this yet but

What if one of the protectors(probably one with really strong powers or unique powers) takes sides with pitch and chaos and she turns bad, turning into one of our nemesis.

Maybe pitch or someone gives her a nightmare about the protectors secretly telling rumors and bad jokes about her when she wasn't looking, and that soon the protectors would kick her out soon, because she was too weak for the rest of the protectors and was falling behind.

Pitch told her to pretend that she was on their side, so pitch and chaos could get information about the protectors. Then at the verry last moment, in the final battle, when the protectors were weak she could join sides with chaos and pitch and finally get her revenge on the protectors.

I don't know if this should happen or not, but it's just a thought.

What do you guys think?