You can get maximum of three Source points, but speak to all the Masters anyway, they will give you skill books instead, if your Source is maxed.
Voidwoken aren't champions, they are simply creatures of the Void. You know, when you wake up on the beach of Fort Joy and come to the place with two Voidlings, your character will comment, that "the Voidwoken have found you, these collars were supposed to keep them away". Voidlings for sure aren't any champions, so it's not anti-source version of the Godwoken. It's simply a name for those of the Void.
