Rinnegan.
Master all the chakra natures, I keep them don't I?
I'd also keep my six bodies.
and massive animals.
and I'd make a god damn moon and live on it.
Byakugan.
Peeping at all the boobies.
Enter a fighting tournament, kill people with a blow.
scare the crap out of people with crazy face veins.
Sharingan
Shoot Amaterasu at everyone
Activate Susano'o and punch on with any animal of your choice.
Eye bleed no jutsu.
Use Kotoamatsukami on a woman of your choice, ( Or kishimoto and tell him too add you too the story)