[Reay]

My Mictlan Priests keep fatiguing themselves out by casting Sabbath Slave and Master. They don't cost a blood slave to cast any more so that is why the AI is prioritising them too highly. I think it would be better if these two spells were not cast by the AI.

Frost Brand is under priced, but probably should not be the same cost as a Fire Brand. Many undead have cold resistance whereas fire resistance is less common.