Rien's False Reality (3.5e Spell)

Everything within this spell’s area of effect appears as something they are not, appearing instead as something else that the caster desires. For example, the caster could declare that all things appear as their most polar opposites; thus an undead creature will appear as the living version of itself, lush terrain will appear razed or otherwise barren, a fiend will appear as a celestial and vice versa, etc. Spell resistance applies to creatures attempting to resist their appearance being changed by the illusion, but cannot apply to how they view other creatures or terrain successfully cloaked by the illusion. This spell can also alter the appearance of the entire landscape, making things appear as though they are not even there, although unintentional interactions with such disguised things affords an interacting creature another Will save against the illusion.

This spell affects all of the target’s senses, and upon failing their Will save the subject’s mind will rationalize what it is (or is not) experiencing. Transformed creatures look, feel, smell and even sound like the creatures they appear to be, such that the language they speak will sound to others as the automatic language of the race they are appearing to be. Unlike other illusions, true seeing is only effective if the caster of true seeing makes a successful caster level check against a DC of 10 + the caster level of Rien's false reality, otherwise the subject’s mind will interpret the illusion as real regardless of the results of true seeing.