Love it....always wanted an SI in avatar,,,just dont make MC a retard or some pervert or a some cliche **** that wants to be with main cast,,fk em....do ur own ****...make him OP, add some romance and ****, just build it and no shallow ****. Make MC do some ****,,,like building steam trains, steam cars? Also make MC a bit dark, brutal and ****,,,not some mercy idiot,,,or happy go lucky dude.
Powers:
give MC water bending, dude is part of water tribe no?, so MC would again have blood bending, water bending and ICE. u could also make water laser. u could also make water superjets,,,high pressure water ' lasers ' would be pretty OP.. Tobiramas water dragon would be dope....Allow MC to easily absorb water from environment and use in attackes
Also remember moment where Magneto rips out metal from some dude, MC could do same with blood cause he has super blood bending ability cause he wished it?, or just cause he is MC.
- u could make MC suck out water from people like crocodile from one piece?...
-also in avatar they have spirit bending or some****, and its linked to water bending....u can Make MC use that to make his water acidic [and maybe even toxic?]......point is MC can make the water extremely acidic and corrosive, enough to easily melt metal...kinda like magellen from one piece [maybe a bit neutered]
-Fire, I dont know, if u do, well remember madaras majestic fire destroyer,,,do that....you could also give combustion bending [just make MC special so that he dosnt require weird eye tattoo......Lightening, well u got to have chidori, Black pather, Laser circuits
U could have MC unlock his chakra points and make it easier for him to bend?
GL