Coradon's Conflagration
(Invocation/Evocation)

Range:  150 yards
Components:  V, S, M
Duration:  4 rounds
Casting Time:  9
Area of Effect:  Special
Saving Throw:  1/2

This spell causes a fiery explosion similar to that of a fireball, but with a smaller radius (initially a 20-foot radius sphere). However, the flames caused by this spell will continue to burn for 4 rounds (the initial round, plus 3 additional rounds). The damage inflicted on victims inside the area of effect, the bonus to the victim's saving throw, and the radius of the flames vary according to how long the flames have been burning, as follows:

	Round	Damage	Radius	Saving Throw Bonus
	1	8d8	20 foot	0
	2	4d8	15 foot	+1
	3	2d8	10 foot	+2
	4	1d8	5 foot	+3

Damage suffered is cumulative from one round to the next, but the saving throw bonus is not. Anyone who makes a successful saving throw takes only half damage that round, and automatically saves on any subsequent rounds; those who fail their saving throws suffer full damage, and must have all their possessions save versus magical fire to avoid destruction. If anyone leaves the area of effect and returns later, a new saving throw must be made, even if the previous one was successful.
The conflagration may, or may not conform to a confined space, at the wizard's discretion. Apart from the changes mentioned above, the conflagration otherwise acts like a fireball.
The material components for this spell are the heart of a red dragon, and a powdered diamond worth at least 600 gp.

