The ability to visit peoples’ dreams, like in Inception. If you haven’t seen Inception, you might just think it’s a cool gimmick that allows you to see what things people wander off doing in their sleep, but the main character, played by Leonardo DiCaprio, is on the run from the government because he’s using it to gain hidden knowledge and influence people who don’t suspect anything is up, almost infinitely. I myself saw him in my dreams too, though I didn’t say a word.

X-Men Cypher. The power to instinctively know/understand all languages.

This is the best, most OP, power set that is nonviolent in nature.

You’re never gonna take over the world and rule with an iron fist, but using a liberal definition of “languages”, there’s not much you couldn’t do. And it would fly under the radar too. No one would be gunning for you like they would be gunning for Superman or any other high level power set.

Sit back, rule the poker world, be a software mogul, sleep with beautiful people, etc. You may not rule the world, but you could live a life of idle luxury without much effort.