I'd have the powers of Sasuke Uchiha
Think about it..
Sharingan 3 tomoe - Beat anyone in a fight that you wanted, be able to dodge bullets, sword swipes, RPG's anything you wanted, because you're on your own level, that no one can even dare to reach.
Eternal Mangekyo - Susano'o, rib cage, skeleton stage, second stage, and third stage. You'd be un-touchable, yes, it'd take quite some time to recover from all the fights you use this in, but it'd be pretty great!
Amaterasu, when someone comes that out powers you in strength, but not in speed or defense, you can just.. Amaterasu them.
Tsykiyomi - (Even if Sasuke doesn't have it, he has strong Genjutsu) Genjutsu in the real life? Lets say you had to fight a friend you didn't want to fight, Genjutsu their ass.. Or you wanted to prove something to a girlfriend, or a friend that you didn't do, flash your memories in a genjutsu. OR, even **** with your enemies in a genjutsu.
Lightning release? Who wouldn't want to control lightning and cause storms?
Fire Release? Who wouldn't want to control fire at will, make embers with your fingers, spit out fire and light a campfire, create smoke around a forest and help smoke out enemies.
If I had these powers, I'd go into the Military and use them for the good of man kind, and use genjutsu on those that need capturing, so I don't need to kill them, extract their knowledge with my eyes. Something like major interrogation haha.
But yeah, I'd use all these powers in the Army, and make this world a better place.
