Well, my entire point is that there is no way to put people in a strength class, because of how completely erratic the strength classes are. As I said earlier, she is probably in the same strength-class as a Bloodthirster, but that doesn't help at all, seeing as:

Marneus Calgar < Broodlord < Bloodthirster = Keeper of Secrets < Fire Warrior < 1000 Fire Warriors < Marneus Calgar

or:

Marneus Calgar< Bloodthirster < Marneus Calgar

or:

Marneus Calgar < Marneus Calgar

Alright, i'll try to define her abilities better.