I read a book a few years ago where magical "knacks" were imparted to
people through the application of a type of mystic sigil in the
flesh, a.k.a a tatoo associated with a particular deity or patron.
I thought about using this in a campign for GURPS Cabal...this seems
like a way to empower non-Mage individuals and bring them into the
service of a Lodge or Grand Master, or even one of the ancient gods.
Any suggestions on the rules applications here?