Felix said:Or if he wants to spend a 5th level slot casting a quickened MM, same thing goes. Either way, Mirror Images has a good chance at protecting you, it'll do so for a round or two at the beginning of combat, and that's good enough for me.
How about the 6th level slot for casting a quickened Mirrror Image?
Faster than the one character can knock them out, the other character can restore them.
Plus, this does not even take into account Empowered Mirror Image which I think WotC ruled against being allowed to happen, but it is still allowed by RAW I think (I don't recall there being special wording against it).
(D4+4)*1.5 images or 12 max images.