From publisher blurb:
Cast A Little Spell On Me
Teenage Witchcraft is a freeform, build-your-own spells witchcraft system that is designed to be used with TinyD6, especially the Stranger Stuff (TinyD6) game for TinyD6. Designed as an add-on to the game anyone can enjoy, options are included for how your Gamemaster wants to introduce witchcraft, with it all ideally balanced enough to have “being a witch” not need to even be a Trait (though those options are presented as well).
All you need to get started is a standard Stranger Stuff character (and that core ruleboook of course) and these rules and you can seamlessly integrate your characters becoming budding witches in no time!