[@Lucius Cypher] Lilith needs a patron God, I'm cool with the idea of a Demon fostering a family and a Cult but if she is granting channeled magic she should be at the end of the day a Servant of the one of the Dark Six.

Drain Touch if its a Necromancy spell is granted by a being of yishreenok, however given her heritage it might be appropriate for it to be the result of the Devourer, or perhaps The Living Misery. 

Beyond that I have to admit I smiled the whole way through reading her CS. This is the sort of character that I never envisioned for Knighthood but I've had more than a few of them and whenever they pop up I just love them because they fit the setting in a way i never imagined