The children of Midas wax and wane according to their feeding. They push their minds and flesh too hard, try to accomplish too much, and so they drain away the Blood. Any Discipline which requires Willpower instead requires the same amount of Vitae. Adrestoi may spend Willpower normally to affect rolls.
Uses of Theban Sorcery always cost one Willpower point. Willpower is critical to use of the Discipline. It invokes the soul of the Kindred who performs a ritual. Willpower spent in this manner does not add three dice to activation rolls. Indeed, because one may spend only one Willpower point per turn, willpower may never be spent to augment Theban Sorcery rolls unless specified otherwise. Willpower merely makes the magic possible.
So... does an Adrestoi use vitea or willpower for Theban Sorcery? I feel that something can be said for either option, so I'm curious as to the general opinion here.
Audrey St. John:I've had it work just fine with them using vitae instead of willpower by attaching the exact same restrictions to vitae expenditure that's applied to willpower expenditure. In other words, they can only spend one vitae per turn on the ritual's casting. They cannot use their freed up Willpower or additional vitae to charge ritual castings or activate other instant duration abilities. Depending on how your chronicle's Sanctified view the sanctity of Theban Sorcery, your Andrestoi may be considered a talented Theban sorceror and have live up to those expectations on behalf of the Church. Or they could fall under suspicion by their inquisitors for heresy because they found a way to corrupt Theban Sorcery by melding it with Cruac.