Cade Skywalker used the Dark side to heal and could bring people back from the dead (recently killed ones at least)
Edit, He did later switch to using the light but most of his use with it was through the Dark side.
I feel his healing is OP anyway, most Dark side healing has down sides, this one was that it pulled him close to falling. Not much of a downside for someone that spent most of his life on the edge anyway. Once he figured out how to do it with the light side he could stop people from dying with no downside.