I'll venture a guess here which Ed can confirm or deny when he get's back. Az'atta isn't really 'supposed' to take any combative skills at all. Certainly unarmed may be more appropriate then most but there's no requirement of any combative skill.~row
That is not to say they are not trained to defend themselves or those whom they have promised to protect from the violent and aggressive nature of others. Each hopeful is trained in the way of unarmed combat, usually in the style of the locality the temple exists in