Blur

(Player's Handbook v.3.5, p. 206)

Illusion (Glamer)
Level: Bard 2, Sorcerer 2, Wizard 2, Vigilante 2, Beguiler 2, Nentyar Hunter 2, Wu Jen 2, Sha'ir 2, Death Master 2, Jester 2, Court Herald 2, Celerity 3,
Components: V,
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: 1 min./level (D)
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)

The subject's outline appears blurred, shifting and wavering.
This distortion grants the subject concealment (20% miss chance).
A see invisibility spell does not counteract the blur effect, but a true seeing spell does.
Opponents that cannot see the subject ignore the spell's effect (though fighting an unseen opponent carries penalties of its own; see page 151).