Shenron is the wish granting dragon created by Kami of the Earth Dragon Balls, and the titular character of the Dragon Ball franchise. After Kami permanently fused with Piccolo, Dende recreated the dragon, and he was then able to grant two wishes per summon. Then, sometime after the events of the "Majin Buu" saga, Dende powered him up a second time, and now he can grant three wishes.