Quote Originally Posted by RoninDarkchild View Post
Not in Lore that treats Ninjitsu more like Magic of some kind. It usually requires you read from a scroll of some kind, and voila you can now use it!
Even on the magical end they still tend to need some kind of catalyst through either chanting or glyphs (including hand signs), so it's still a type of tool that's used, doesn't always mean consumable though.