>Not good at anything but can do everything.
best description of ENTP for sure.
with superpowers both have unique perspectives, Ti dom, the thinker, being more in the realm of understanding wordily situations, getting into the strategic aspect of peoples heads, foreseeing strategic moves (mission impossible, the avengers) tricking people into making mistakes by feeding them information or fake scenarios, Ni dom, the perceiver, being more in the realm of psychology, knowing people's essence behind their appearance (seeing through vampires and aliens too, knowing when lied to), being psychic about what spirit/motive moves individuals or communal entities/tribes (millenium, maybe columbo), taking advantage from psychological dissonances, exploiting differences between self-image and true self. possibly abduct people into a psychotic dreamworld.
the problem with your Ti dom hero is that no one will understand the book, except Ti doms.
the Ni dom's adventure can be written as an experience/illustration that can be followed by most (albeit may would have little interest), the process get's to you without requiring an conceptual understanding of it, albeit the latter could make it a lot more spicy
