McTripp
First you should upload 3 or 5 test chapters, since the reader does not know 1 the system, characteristics, functions, etc. 2 the chosen pokemon, it can be a damn arceus, even a magikarp 3 will stay away from humans or not 4 the combat, yes I know, there are pokemon techniques but he also doesn't know it. It's not a negative criticism, it's just that you leave the story on the air I'll give it a try and put it in the library
I had to think about this for a bit since my knee jerk reaction is to say charmander but that's used too often for obvious reasons (its awesome). So I've left trying to think of a pokemon that's not used too much, has a versatile movepool to learn, as well as being suitably powerful and I came up with totodile. If not that then maybe a gible, I thought that might be a bit much but just throwing it out there.