DoT based built (Blizzard and Frost Hydra) with RoF of course. This should work very well with both mobs and kiting Boss fights.
Mirror Image and Teleport along with Illusionist for Defense. This should work well with DoT builts and kiting around mobs/bosses. After all, with AoE DoT builts it makes sense to kite the mobs around the DoTs. Mirror Image and Teleport sound ideal for that.
Shock Pulse for waiting on AP regen when I am out. It should also help with hi-forst-resist mobs.