The second option for the half-god to revive is to find the body of strong angels to possess. He can also eat the souls of the angel of killing in order to recover his strength.
The more complete the angel of killing he possesses, the better for him because a complete angel of killing would have gained most of their power and will be in possession of all of their souls, which he wants to eat.
With a new strong body to use, he can still try to recover the authority of the pathway. As long as he can recover that authority before someone else on the pathway of killing does, everything will be fine.
For both options, the end goal is to recover the Authority of the pathway. As long as there is no new god of killing, he will remain the god of killing and will be able to recover his power once he comes into possession of the authority of the pathway.
