Stalker0 said:
By the way, since I'm reading up on the spell now, is there anything against casting multiple mirror images, to get twice the number of guys?
For all I know, you could cast the spell a dozen times and get dozens of images.
Each spell is limited to creating 8 images, but nothing indicates that more could not be done.
There is a rule that bonuses or penalties do not stack, but these are not bonuses or penalties.
There is also a rule about same named spells having only the best spell operating at one time, but the moment it is gone, any other remaining spell takes over.
With this rule in mind, there would be a slight difference.
You could have 3 mirror image spells up at the same time, one with 3 images, one with 4 images, and one with 5 images. Theoretically, any attack would resolve against the 5 images (i.e. one in 6 chance of getting hit), not one in 13. Once that spell is down to 3 images, again the most powerful spell would take over and it would be be the 4 image one (i.e. one in 5 chance of getting hit).
So yes, you could cast the spell multiple times. However, only the currently most potent one would affect combat at any given time.