You may search for the Dragon balls, searching for them is a hard task so be ready for a long trip. They can grant wishes but they have limits.
Dragon ball locations:
Earth Dragon Balls: [ Earth ]
Namek Dragon Balls: [ Namek ]
Black Star Dragon balls: [ Around the Universe ]
How to find the dragon balls:
When looking without a dragon radar, its a low chance of finding it, Black star Dragon balls are very low, about 1% chance. With a Dragon radar finding a Earth or Namek dragon ball is medium, finding a Black star is still low, about 5% chance.
About the Dragon balls:
The Earth Dragon balls grant three wishes, Namekian dragon balls grant 3 wishes. Black star grant any wish, but they destroy the planet they were last used on in 3 months.
Wishes:
Earth Dragon balls ( 3 wishes ) :
One of any item with low rarity or lower ( Except Dragon ball )
Learn any low level technique
Bring someone back to life, or bring back everyone that was killed by a person
Namek Dragon balls ( 3 wishes ) :
One of any item with a medium rarity or lower ( Except Dragon ball )
Learn any Medium level technique
Bring someone back to life, or bring back everyone that was killed by a person
Black Star Dragon Balls ( 1 wish ) :
One of any item with any rarity ( Except Dragon ball )
Learn any technique
Bring any amount of people back to life
Dragon ball locations
Earth Dragon Balls:
1 Star Dragon Ball: Unknown
2 Star Dragon Ball: Unknown
3 Star Dragon Ball: Unknown
4 Star Dragon Ball: Unknown
5 Star Dragon Ball: Unknown
6 Star Dragon Ball: Unknwon
7 Star Dragon Ball: Unknown
Namekian Dragon Balls:
1 Star Dragon Ball: Unknown
2 Star Dragon Ball: Unknown
3 Star Dragon Ball: Unknown
4 Star Dragon Ball: Unknown
5 Star Dragon Ball: Unknown
6 Star Dragon Ball: Unknown
7 Star Dragon Ball: Unknown
Black Star Dragon Balls:
1 Star Dragon Ball: Unknown
2 Star Dragon Ball: Unknown
3 Star Dragon Ball: Unknown
4 Star Dragon Ball: Unknown
5 Star Dragon Ball: Unknown
6 Star Dragon Ball: Unknown
7 Star Dragon Ball: Unknown