She has every kind of superpower in the world, but each one is very weak.
Telekinesis: Other people can lift a truck, but all she can do is flip a coin.
Control over lightning: Other people can summon a thunderstorm, but all she can manage is charging her wristband.
You could call her useless, but she has more superpowers than anyone can count.
You could call her a genius, but every single power of hers is ridiculously weak.
Could her superpowers be a trial version?
Theme: Moving forward together and overcoming difficulties hand in hand.
