Level: 6
Range: 5 yds/level
Duration:  2 rounds/level
Components: V, S, M
Casting Time:  6 segments
Saving Throw: None
Area of Effect: 20' square

This spell creates a glittering
screen of energy of any color chosen by the caster. All creatures
passing through the screen will be attacked by a multitude
of razor-sharp blades made of substance drawn from
the quasi-plane of mineral. Each creature suffers 3d20
points of damage no matter what its AC. The spell
can be shaped into anything the caster wishes. 

MC: A collection of sharp diamond chips worth
at least 5,000 g.p., and these vanish after the spell is cast.