Dragons law

This last case scenario is a spell not to be messed with. this spell was made by the souls of dragons and now it is powerful enough to take down gods, for what this spell can do is that when its cast the person who casted it is no longer in control of said spell, when its activated it will check both characters strength, dexterity and constitution slots...whos ever is the lowest in total will get there body and soul trapped forever in the spell .