Reinvigoration question

[Fantomen]

If there is a certain amount of fatigue required you could solve it by using fewer slaves, or heavier spells cast by the master before. Of course you need to make sure there are blood slaves for him to use also, you didn't simply forget to give him blood slaves did you?

[mockingbird]

Yes, I'm sure he had blood slaves.

Sometimes it works, sometimes it doesn't. I'm trying to see if anyone has a deeper understanding of the AI decision-making process with regard to this spell.