How would Rikudou Sennin's powers interact with the characters in Highschool DxD in a fanfiction?
Rikudou Sennin's chakra could be seen as a unique power source by the DxD characters. For example, devils might try to make pacts with him to gain access to his chakra. His ability to manipulate the Six Paths powers could also give him an edge in battles against the various beings in the DxD world. He could potentially use his power to nullify some of the abilities of the angels or fallen angels.
In a fanfiction, Rikudou Sennin's power of resurrection might be a game - changer in the Highschool DxD world. If a beloved character in DxD were to die, his power could bring them back. This would create a whole new set of relationships and power dynamics. His ninjutsu skills like substitution jutsu could also be very useful in combat situations in the DxD world. The DxD characters would have to adapt to his powers, and some might even try to learn from him to gain an advantage over their enemies.
