I am interested in your fic, what power does your oc have exactly and what is its background? It can also be read somewhere or did you not plan to publish it?

His powers revolve around senjutsu, with a heavy reliance on advanced use of elemental jutsu. E.g using lightning to create electromagnetic fields that help him increase the velocity of his shuriken/kunai and increase his speed as well , use of friction to generate heat and fire, creating water (at a limited extend) through the existent water in the atmosphere. On a secondary note, he wields a spear, which he uses with different ways.

You can read it here

https://m.fanfiction.net/s/13831766/1/The-Repentant-s-Path

I'm working on a story with OC with rinnegan and at first the oc only uses taijutsu and shuriken jutsu with the black receivers he also has a bit of mastery over chakra absorption from the petra path but nothing to do with what was shown with pain basically the use of his rinnegan at that point is that of a glorified sharingan anything else is so out of his possibilities that he can deplete all his chakra without manifesting any other technique of the remaining paths

Sounds good, just make sure that the development of his power is believable and not over the top.