Importance of Leo's Tool Belt

Leo's tool belt is magical, and will produce anything he needs if he asks for it and draws it from one of the pockets. It is harder for Leo to produce items that do not exist in an ordinary workshop, though he is able to produce breath mints. The belt also seems to have a cooldown, meaning he cannot draw too many things from it at once. The belt comes in handy a lot throughout the story, particularly in fights.