The lone survivor of his village on Namek, Dende was rescued by Krillin
Gohan from death in the Frieza saga (Although he later does get killed,
and then revived by the dragonballs).
After Kami merges with Piccolo, Dende assumes the role of Kami
on earth, and creates his own set of Dragonballs.
Unlike Piccolo and the other warrior Nameks, Dende is a healer. He
has no fighting abilities, but possesses the
power to heal others from the brink of death.