the only thing that should be a problem is past because I haven't thought to do a backstory yet, but here we go!
weapon: ki blasts, fists
power level: idk how to determine power levels so lets just say at his peak power he has the strength of vegeto blue
personality: cocky unless he's in ui, if he's in ui he will stop trying to talk and focus on fighting, he will talk during the fight to distract the enemy and that's about it
past: in an AU where it was him instead of goku that came to earth, he crash lands and bumps his head during the ride, when he got up he decided to make a small cabin (a very sucky cabin might I add) and live in it until his teens, during that time, he trained and trained up until he mastered flying, when he got to his teens he had used ssj1 for the first time, after that, lets skip 25 years and he mastered SSJB, he fought in the T.O.P and lost but the other universe brought them back, and that's the point of which he's fighting now