An Imp-like being from another dimension, has granted you (And others around the world) powers for no apparent reason, but they are restricted by a catchphrase. Yell it and you'll transform into that a super being with supernatural abilities, then yell it again to return to being you. However, you can only stay transformed up to three hours a day, having to wait until 24 hours have past before transforming again. Before you start deciding: You cannot have powers that alter the past, bring back the dead and are classified as Omni, Almighty, Absolute, Meta or Transcendent. Also, in terms of power level, you cannot be above 7-A Tier (Mountain Level) on the Vs Battles Wiki tiering system.
To make things easier for you and other Super Beings, all of you gain the ability to understand others that don't speak your language. You don't actually know how to speak all languages, instead when people speak in their native tongue, you will hear them in their respective native tongues. As suspected, this ability (Which can be deactivated at will) doesn't allow one to learn how to speak, read or write on those languages. Not only it also only works with sufficiently intelligent creatures like humans and dolphins, but you can pass this ability to your children (Unlike with your transformation).
What is your catchphrase? What does your ''super form'' look like?
I would go for ''Power On!!!'' and my powers would be similar to Superman's: Supernatural Body (Although with Peak Human Regeneration), Harmless X-Ray Vision, Heat Vision, Flight, Disease Immunity, Radiation Immunity, Psychic Shield, Oxygen Independence and Vacuum Adaptation. For some context, my strength, speed and durability is on par with that of Homelander, from the TV Show ''The Boys''.
As for my appearance...
What do you think?