There is a Legacy version here.

Aeon

Source GM Core pg. 326 2.0
These monitors are the self-styled defenders of reality. Traditional aeons have dualistic natures and forms, and they hold a dichotomy of interests, axiomites and inevitables don’t. Aeons other than axiomites and inevitables communicate via a strange telepathic hodgepodge of sensory sending called envisioning.