Cinnamon is perhaps one of the most widely used herbs in spellcrafting. You could essentially toss it into any spell and it would still make sense.
It’s difficult to argue that cinnamon isn’t extremely useful when you consider its many magical properties.
Cinnamon can be used for protection, luck, love, healing, prosperity, spiritual awareness, and aiding psychic powers. On top of that, cinnamon can be added to any spell to help it act more quickly or to simply give it a little extra boost.