Rune Stone
(Alteration)(Combat)

Range:  Special
Components:  V, S
Duration:  1 turn per level
Casting Time:  5 turns
Area of Effect:  3 stones per level
Saving Throw:  1/2

The priest must first carve his holy symbol into each stone he wishes to enchant. This takes 1 turn per stone, and requires a Dexterity check. The stones must be semi-precious in nature at least, or worth 5 gp or more. The spell is then cast upon the stones whereupon each one becomes a grenade doing 6d4 points of damage to all within 5 feet when thrown. The stones can be put in slings, or simply thrown. Anyone can throw these stones.

