Neat. Here is my entry:
Delusion
Enchantment (Compulsion) [Language-Dependent, Mind-Affecting]
Level: 5
Components: V, M
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One living creature
Duration: 1 day/level
Saving Throw: Will negates
Spell Resistance: Yes
Your words are persuasive, and the target believes what you tell them, regardless of how bizarre, or absurd it may sound. The target listens to your words intently and believes them as if they are fact. These beliefs can be delusional. A man with a broken leg can believe that it is not broken (and can walk on it without pain, though it can still cause him physical damage, it is just ignored). A loyal servant can believe that the king is dead even though he just saw him.
Any occurrence that contradicts the delusional belief grants the target an additional will save. A failed save occurs in a paradox for the victim, and he will believe and defend (possibly with force) that what he sees is false.
The recipient of this spell can ignore pain from any effect, but the results of the effect still occur. That is, a delusional belief might be that the target is immune to fire, but the spell confers no such benefit, and any damage taken from such an effect is still real.
Material Component: Golden pyrite (fool's gold).