>>80557933In the first episodes of Alien Force, where she stops using magic words and instead gets energy powers that basically work like Green Lantern's except purple. Then Kevin mentions to her that magic doesn't exist, so her powers must either be from alien technology that humans don't understand, or from traces of alien DNA somewhere in her family tree, because that's where all powers come from.
Then we find out that Grandpa Max's ex-wife was an energy being who took human form, which is why Gwen has powers. Apparently it can skip a generation, which is why no one else in the family was born with Anodite energy powers.
Then after a couple of seasons they're back to saying that magic is an actual thing and Gwen is back to using spell incantations.