I posted (whined/ranted) over on the Official Forums about a couple issues that particularly annoy me and likely most raiding Illusionists.
Mob Damage Shield Reactives and Prismatic Adornment (Changes Needed)
#1 Prismatic Adornment triggers counting as cast spells when it comes to triggering mobs reactive damage shield stuns, stifles, etc.
#2 The raiding game being full of annoying mob reactive damage shields that lock us down or kill our dps ALOT, leaving us sitting there with our hands on our dicks.
#3 To a lesser extent the difficulty of getting all triggers of Prismatic Adornment to go off on many encounters, especially with some classes (our MT now is an Crusader).
Pop over to the Official Forums and speak your mind if you feel like it, or start feedbacking these issues in-game so we can get a few corrections and/or friendly changes, especially with proc nerf incoming.
-Gerrod