Several illusory duplicates of you pop into being, making it difficult for enemies to know which target to attack. The figments are under your control and disappear when struck.
Multi image creates 1d4 images plus one image per three caster levels (maximum eight images total). These figments separate from you and are able to perform different functions. One may appear to drink a potion, while another appears to move into another room, while a third attempts to cast a spell, complete with aural effects. It is a move-equivalent action to direct the images each round. If the caster does not direct the images, they immediately stop what they are doing and mimic the caster. All images must remain within 10 feet of any other image or the caster at all times.
You can move into and through a multi image. When you and the multi image separate, observers can’t use vision or hearing to tell which one is you and which the image. The figments may also move through each other.
Enemies attempting to attack you or cast spells at you must select from among the available targets. If the enemy doesn't specify which image they are attacking (by choosing an image taking a particular action) roll randomly to see whether the selected target is real or a figment. Any successful attack against an image destroys it. An image’s AC is 10 + your size modifier + your Dex modifier. Figments seem to react normally to area spells (such as looking like they’re burned or dead after being hit by a fireball).
While moving, you can merge with and split off from figments so that enemies who have learned which image is real are again confounded.
An attacker must be able to see the images to be fooled. If you are invisible or an attacker shuts his or her eyes, the spell has no effect. (Being unable to see carries the same penalties as being blinded.)