Resist Fire

Regular 
The subject (person, creature, or object) and anything he carries become immune to the effects of heat and fire (but not electricity).

Duration: 1 minute. 
Cost: 2 to cast. 1 to maintain. Cost doubles if subject must resist a blast furnace or volcano; cost triples if subject must resist the heat of a star, nuclear bomb, etc. Only the first level of protection is necessary against combat-type Fire spells. 
Prerequisite: Fireproof.

Item 
Staff, wand, or jewelry; only affects the wearer.  
Energy cost to create: 800; must include a ruby worth $500 and a black onyx worth $200.