Witchfire

Witchfire is a mildly complex invocation wielded by several warlocks. When witchfire is cast it summons from the Feywild a hot, white flame into a target of the warlock's choosing within fifty feet. If set inside a living creature, the flame causes the creature immense pain, sending streams of enchanted fire through the creature's orifices with such pain as to distract them from all other things, making them less effective combatants. The potency of witchfire is largely determined by the strength of personality possessed by the warlock casting it, though warlocks of the fey pact also find a strong intellect to be of enormous importance. The spell is not easily cast and once it has been used, it cannot be recast by the warlock without a brief respite for the body and mind.