Warboulder
(Alteration)

Range:  0
Components:  V, S, M
Duration:  Special
Casting Time:  1 turn
Area of Effect:  Special
Saving Throw:  None

This creates a similar enchantment as the warstone on a single boulder (up to large catapult size). The wizard can then make this boulder hurl itself up to a distance of 10 feet per level, doing damage as if hurled by a catapult. Upon striking, the boulder shatters and inflicts 2d8 damage in a 30-foot radius. The material component is an unworked boulder. The shards disappear after the casting.

