Fire/Rad Help

Correct. I rarely use them for anything except an AV/GM, or occasionally for a toggle pull on a mob. Flashfire and Fire Cages for initial control, then Choking Cloud keeps everything locked down. With CC running, Char will insta-hold bosses. Then I use Fissure on the mob and Seismic Smash on any bosses.

I've never tried Psi Mastery. My fire/rad has Stone Mastery. However, looking at WoC, I'd say it's not worth it. Radius is only 8' compared to 15' in Choking Cloud. Plus, in my experience, CC provides nearly 100% control after the first few seconds, so the additional control from WoC would be completely unnecessary.

I use the Psi Mastery on my Fire/Rad, mostly for Indomidable Will to reduce the incidents of toggle drop. However, I don't intend to use World of Confusion.

A friend of mine tried World of Confusion out on his Fire/Rad . . . and was very unimpressed. If WoC was another hold, allowing you to stack holds, then it might be worthwhile, but with such a small area, it is pretty worthless. I'm tempted to try WoC out on my Ice Controller who uses Arctic Air, as that would allow stacking confuses.

Other than on Ice Controllers, the only use most people seem to get out of WoC is as a mule for a fairly inexpensive purple set. The Contagious Confusion proc will make WoC marginally more effective, but not as anything you can really rely upon. The Aoe is just too small.