Blinding Color Surge

Blinding color surge
Illusion (Glamer)
Level: Beguiler 2, sorcerer/wizard 2
Components: V, S, F
Casting time: 1 standard action
Range: Medium (100' + 10'/lv)
Targets: You and one creature
Duration: 1 rd/lvl
Saving throw: Will negates
Spell resistance: Yes
The colour is stripped from the caster's body and turned into a lance of energy which hurls towards the target. The target must make a will save or be blinded for one round. Even if the target succeeds on its save, the caster gains the benefit of the invisibility spell for the duration of the spell.
Focus: A small prism.
Players Handbook II, p. 104