Aura of Fire
Evocation
Level: Sor/Wiz 8, Clr, Fire 8
Components: V, S, M
Casting Time: 1 Standard Action
Range: Medium (100 ft+10ft/level)
Radius: 10ft/level radius burst (maximum 500 ft)
Duration: 1 round/level
Saving Throw: Fortitude half
Spell Resistance: Yes
Heat begins to fill the air, and all creatures within the radius (including the caster himself, if he is within the radius) take 1d6 fire damage per a caster level. All creatures within the radius take an additional 1d6 fire damage per a caster level every round they are within the aura.
Material Component: Ruby worth 5,000 gp