Hellfire Spell (Metamagic)
The power of hellfire runs through your veins.
Prerequisites: Any spellcasting class, fealty to Mephistopheles.
Benefit: You can alter a spell with the Fire descriptor to become a hellfire spell.
When you cast the spell, the Fire descriptor is replaced with the Evil descriptor, and any fire damage inflicted by the spell is instead untyped.
A hellfire spell uses a spell slot 1 level higher than the spell’s normal spell level.