As an action, you attempt to falsify one of a creature’s senses. Choose a creature that you can touch or see within 100 meters who must make a Will saving throw.
On a failed save, the target thinks it sees, hears, smells, tastes, or feels something other than what its senses actually report.
You can’t create a sensation where none exists, nor make the target completely oblivious to a sensation, but you can replace the specifics of one sensation with different specifics. For instance, you could make a human look like a dwarf (or one human look like another specific human), a closed door look like it is open, a vat of acid smell like rose water, a parrot look like a bookend, stale rations taste like fresh fruit, a light pat feel like a dagger thrust, a scream sound like the howling wind, and so on.
You can switch between senses you falsify round by round. You can’t alter the size of an object by more than 50% by using this spell. Thus, you couldn’t make a castle look like a hovel, but you could make it look like a different castle, or a rough hillock of approximately the same size.
Because you override a victim’s senses, you can fool a victim who is using true seeing or some other method of gathering information.
You can target one additional creature for each additional mana or psi expended. The creatures must be within 5 meters of each other when you target them.