Suggest Illusion
(Illusion/Phantasm)

Range:  6 yards + 1 yard per level
Components:  V, S, M
Duration:  4 rounds + 1 round per level
Casting Time:  3
Area of Effect:  One creature per 3 levels
Saving Throw:  Negates

This devious spell causes a targeted creatures to believe that they have just discovered and successful disbelieved an illusion. This is a bit of misdirection caused by the wizard, as the item selected by the wizard to be believed as an illusion could actually be real.
This spell could be great for causing enemies of the wizard to walk into a pit because it "does not really exist".
If the victim has a reason to believe that a so called illusion is actually not an illusion, then he get a saving throw versus spell to actually determine if the item is an illusion or not.
The material component of this spell is a bit of burning incense, which of course adds to a magical "atmosphere", thus making the victims believe even harder that they are really seeing an illusion.

