5th level Evocation
Classes: Magus, Sorcerer, Wizard
Domains: Acid, Ice, Lightning
Components: V, S
Casting Time: Standard
Range: 120 ft
Effect: 20-ft.-high wall of energy whose area is up to 100 square feet
Duration: 1 minute
Spell Resistance: Yes
Description: You create a wall of faintly shimmering elemental energy. Upon casting this spell, choose either acid, cold, electricity, or fire. The spell gains the chosen descriptor, and any thrown weapons or ammunition that pass through the augmenting wall as part of a ranged attack deal 1d6 points of energy damage of the specified type in addition to their normal damage. The wall has no effect on melee weapons or items not thrown as part of an attack. As you cast the spell, you can limit the wall so that it only affects ranged weapons passing through it in the direction of your choice. Doing so halves the spell's duration.
Leveling: Each level higher adds 20 square feet of area and 1 extra round of duration.