Gembomb

This spell converts up to 1 gem per five levels into a grenade-like missile that can be lobbed by the caster only at an enemy target. The casting priest must hold the gems in his or her hand when the spell is cast. Gems enchanted by gembomb can only be thrown by hand (Ranges: 10/20/30). If the attack fails to hit, consult the Scatter Diagram for Grenade-like Missiles for where the gem lands.
A gembomb explodes in a rainbow-colored shower of magical energy when it is thrown to impact any hard surface. It will not explode if dropped or held temporarily in a pouch. On a direct hit, a gembomb inflicts 1d6 points of damage per 50-gp value of the gem, to a maximum of 3d6 points of damage. Gembombs have a 10-foot-diameter area of effect and inflict incidental damage of 1d3 points of damage per 50-gp value of the gem to a maximum of 3d3 points of damage to all creatures within the area of the explosion who are not struck by the bomb. Those who suffer damage from a gembomb and succeed with a saving throw vs. spell suffer only half damage.
Only one enchanted gem can be thrown per round. The caster cannot have more than one gembomb spell active at a time. Gems that have not been thrown when the spell expires disappear; all gems that explode are destroyed. The spell does not function upon artifacts.

[Demihuman Deities]

Garl Glittergold

Sphere: Combat
(Enchantment/Charm)
Level: 3

Range: Touch
Components: V, S, M
Duration: 1 turn
Casting Time: 6
Area of Effect: 1 gem/5 levels
Saving Throw: 1/2

Material Components: one or more gems worth at least 50 gp (consumed after use or upon expiration of the spell)