Area 
Creates a covering of frost on all surfaces in the area of effect. The frost is real, and lasts indefinitely if the temperature is below freezing. In warmer conditions, the frost quickly melts to a dew. When cast upon a real or magical fire, the frost produces a cloud of steam and causes the flames to hiss for a few seconds. Only a tiny fire – a match or candle – would actually be extinguished by a Frost spell. 
A Frost spell cast upon a fire elemental or other flaming creature does one point of damage to the creature, but is more likely to anger it than drive it away.

Duration: The frost lasts until it melts naturally. 
Base cost: 1. 
Prerequisite: Create Water or Cold

Item 
Staff, wand, or jewelry.  
Cost to create: 200 energy, $350 blue gem.