Visions
This spell forces horrifying visions of the past upon the target, filling their sight. This will vastly increase the target's chances of missing attacks due to armour class. The blindfighting skill can mitigate this.
One so afflicted will see nothing else when using the look, scan, where, or exits commands, and will also be unable to use archery. It is easier to inflict visions upon those with a redder aura, and harder upon those more to the gold.