You can have any superpower you want, from x-ray vision to invisibility...
But anyone else can give your superpower a side-effect, thus defeating the whole purpose of having one.

For example...

Person 1: I can fly.
Person 2: But only when you're on the toilet.

Superhuman strength.

But only when you're completely naked.

That’s messed up. 😂 I love it.

Nuking the Entire Omniverse into Oblivion

(only) when you die IRL

Ahahaha nice.

You have the power to control minds.
However, you can only control a person's mind if you can convince them that there is somehow a "Z" in the current month.

shows year calendar in Polish language, points at October

Superpower: to always buy the most winning lottery ticket if such is available for purchasing.

Waiting for other person to mess this up.

PRUNGO JUNGO!

🌴🌶️☀️🌞🌅🌋🌃

Congratulations! You will indeed be always able to buy the lottery ticket that brings you the biggest fortune... in cryptocurrency.

Superpower: Ability to choose how many hours I sleep each night.

You go into a coma for a year.