The closest thing to that I can think of is probably the possession by voidsent implied in Haukke and seen in the Thaumaturge storyline. As for like, just being part voidsent or having their powers, it seems like fanon.
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AV by Kura-Ou
Wiki (Last updated 01/16)
My Balmung profile.
AV by Kura-Ou
Wiki (Last updated 01/16)
My Balmung profile.