Sandblast

The following material is Open Game Content from a 3PP Source

SANDBLAST
School conjuration (creation); Level sorcerer/wizard 4
Casting Time 1 standard action
Components V, S, M (a pinch of sand)
Range 15 ft.
Area cone-shaped emanation
Duration instantaneous
Saving Throw Reflex partial, see text; Spell Resistance yes

A 15 foot cone of hot sand blasts forth from your hands. The sand deals 2d6 points of damage +1d6 points per four caster levels (to a maximum of +5d6 at 20th level), and leaves its victims blinded for 1d4 rounds. With a successful Reflex save, targets take half damage and are blinded only one round.