Spirits of fire are abated when the demon takes over. Like street or stage magicians, the demons provide the magik. And the demons get their power from Doofus, satan. So, without the fallen angels and dickless doofus, these demons are just annoying gnats that need a good swatting.
https://yeshuafreedom.com/w/gmcD1vhEuYHAh5txDbX3KX