Hello everyone!
Thank you for answering my questions so far and I really appreciate the resourcefulness and discussion that this board brings!
Faith & Flame has a virtue, Dark Magic, that allows a caster to benefit from Magic, Fairie, and Infernal Auras, and specifically mentions that
The Virtue is thought to be related to Chthonic Magic, and may have originally come to the order and the cult from The Witches of Thessaly.
I like this virtue, because the Witches of Thessaly are mentioned as using Fairie Auras as well as Magic and Infernal, and also because it doesn't link them specifically to blasphemy the way Chthonic Magic does.
In my headcannon then, the Witches of Thessaly/Trianoma are the magic, Fairie and infernal using but not (yet) corrupted folk witches, and the Daughters of Erictho are the fully infernally corrupted version.
But I have some questions about Dark Magic:
Would this virtue also allow the use of Fairie and Infernal Vis without penalty or extra bitch dice?
Could they refine Vis from each Aura?
(Probably using the Folk Witch Magic Theory version of refining Vis)
Could they bind creatures with Infernal or Fairie might as familiars? (Which may or may not be actual fairies or demons)
Besides the bonus to casting total, and immunity to warping, basically my question is how far does "benefit from" extend?