Aura of Hellfire


School	Evocation (opposed by Conjuration)
Spell level	innate level 9 - no class learns it from a spellbook
Range	Personal - 0 metres, or 2.25 when aimed at another creature
Components	Verbal and somatic
Can be aimed at	yourself or an item
Counts as an attack	Yes - casting it on someone is a hostile act
Metamagic allowed	Empower, Extend, Maximize, Quicken, Silent, Still

How it works

While it is up you are immune to fire, and anyone striking you in melee takes 2d6 fire damage plus your caster level, counted up to 40.
Using the ability again turns it off, and it cannot be dispelled.
Anyone standing in it takes 6d6 fire damage plus your caster level each round, with a Fortitude save for half.