Soulfire consumes part of the user's soul to enhance their magic. The soul regenerates over time, or through acts which are "good for the soul", but will kill the user if it is completely drained. While Hellfire increases the power of violent and destructive spells, Soulfire increases the power of creative spells, using a portion of the soul as a matrix for a spell in the process.
Soulfire gives structure to magic; it could theoretically allow a path to be made into deeper Faerie by stabilizing the gateway. While |angels use it, it is unknown if they use it on its own or bind it to a form of magic.(reference needed)
Despite being similar to Hellfire in enhancing magic, there is a key difference: Hellfire gives power to the means; Soulfire gives power to the intention, giving the user much finer control on the spell.(reference needed)
In the seriesEdit
- Main article: Small Favor
In Small Favor, Harry Dresden first unknowingly uses Soulfire against Namshiel in the Aquarium. It manifests itself as a massive silvery simulacrum of his hand. Dresden is granted the use of Soulfire by the Archangel Uriel.
Bob informs Dresden that Soulfire is powered by one's soul. It forms a matrix around which one builds a spell, giving it much more power. Given time, the soul can regenerate, unless it is used all up. If the soul is exhausted, however, the consequences are not pleasant.
- Main article: Turn Coat
- Main article: Changes
- Main article: Cold Days
In Cold Days, Harry Dresden understands that soulfire is fueled from the user's entire being - not only from the 'soul' but the amalgamation of what makes the Self (a product of every decision made, every thought we have, every action done), and that it is the user's entire being and identity that fuels it.(reference needed)