Perfect!

In addition to their current spells, mage Mirror Images now can randomly cast Frost Nova, Ring of Frost, Portal: Dalaran, and Mirror Image. Mirror Images summoned by Mirror Images can also cast Mirror Image. Mirror Images summoned by Mirror Images that are summoned by Mirror Images can also cast Mirror Images. Mirror Images that are summoned by Mirror Images that are summoned by Mirror Images that are summoned by Mirror Images…

This is exactly what we needed! I can't wait to try this out.
http://tinyurl.com/3hsl9we