Shenron

Shenron is a magical dragon from the Animes Dragon Ball, Dragon Ball Z and Dragon Ball GT. Shenron can be summoned by gathering all seven of the Dragon Balls of earth. Shenron can bestow any wish as long as it does not exceed the power of its creator and as long as the creator still lives. In Shenron's case, the creator is Kami/Piccolo. Unlike Porunga, however, Shenron can only grant one wish per summoning. The Dragon Balls cannot be used for one Earth year after a wish is made.

In Dragonball GT, an evil Shenron is made from the Black Star Dragon Balls. The evil Shenron splits into individual dragons for each of the Dragon Balls, and Goku & company end up having to fight them.