Heal others instantly
Dende was the only survivor from his village on Planet Namek. Krillin and Gohan rescued Dende. He doesn't have very strong fighting abilities like other Namekian warriors. However, Dende does poses the power to heal - a trait that's important in the battle with Frieza.
Later in the series Dende becomes the Guardian of the Earth after Kami fuses with Piccolo.