Charmed - Season 7 Episode 20 -

Viccus, a demon who possesses the power of corrupt children through cursed objects (toys), tries to turned little Wyatt into evil. Piper writes a spell to understand Wyatt's words, but she brings adult Wyatt from the future instead. Vicuss succeeded turning Wyatt evil, but Leo figures Vicuss plan out, and helps Wyatt turn good again.