Divine Ability Vs Concept.

The best way to kill transcendents is to inject their soul bodies with laws. This will make their existence impure. It will slow down their healing and bring them to their limit quicker. This also has the advantage of using a lesser amount of energy and power. 

The efficiency of brute force reduces as life evolves. A Sovereign of law with a body of law can still be forcefully broken apart with brute force. But brute force becomes largely useless against an Origin god. 

Laws are what give brute force efficiency. They are what give power the sharp edge needed to cut down a tree better than a club. Rinoz doesn't have the sharp edge needed to efficiently use her raw power. She lacks any sort of Authority. So she will need the assistance of Origin weapons to harm Origin gods at all.