Malady wrote: Mythological Spirits for Avatars are possible?
A.k.a, Unique of Gen2, and her Unicorn spirit?
Or is the spirit sorta like Glee, being a spirit-thing of not an animal?
Class 2 entities (e.g., spirits, demons, gods, totems, manitou, kachina, kami, divs, loa, daevas, faeries, goblins, hobgoblins) can stabilize themselves on the Material Plane
using a template
(like local myths and other stories).
Some of those templates may allow for the entity to adopt one, a handful, or as many forms as they chose when they take a physical form.
Would they be
the unicorn or pillar of living fire of the old stories? Depends on the writer.
Malady wrote: Can't be Five-Fold unless they're sapient, since only those survived the Sundering?
For a given value of "survived".
Those who were already dead may not have been Sundered. Or, their afterlife got blown to bits and they ended up scattered throughout time and space (Sort of like getting on the bad side of Rose Tyler) Who knows?