Icy Rays
I've seen it used to great effect numerous times. There are way too many monsters in heroic tier who simply do nothing for their turns if no one is within melee range. As such, Icy Rays is often the equivalent of the stun condition. At least, this was the case for much of my campaign. It is further improved if one of your melee characters has the ability to push 2+ squares with one of their attacks in order to keep them away.
I've seen it used to great effect numerous times. There are way too many monsters in heroic tier who simply do nothing for their turns if no one is within melee range. As such, Icy Rays is often the equivalent of the stun condition. At least, this was the case for much of my campaign. It is further improved if one of your melee characters has the ability to push 2+ squares with one of their attacks in order to keep them away.