I've read that some wizards take mass frog to deal with constructs. My question is: how do you get the DC high enough to be meaningful with all of the other steep requirements we have to get decent DCs? What DC do you normally run with for mass frog, and what enemies does it normally work on at that DC? Or is it better left to the divines and just hope that prismatic spray lands every once in a while?
Also, what CC do you use on constructs besides web? I've never tried Burst of Glacial Wrath: does that work? Or is there something else I should use?