So we have all the guides on Frost, rotations etc but I wanted to talk more in-depth about the Frost opener and how to maximise efficiency from it.
Currently I am using Frost Bomb, Mirror Image and Thermal Void as talents as they synergize quite well, particularly on the opener with Water Jet. My current opener looks like this:
-3: Pot
-2: Mirror Image
-1: Frostbolt
This first Frostbolt will activate Water Elementals Water Jet when it lands if it is on Auto, if not, hit it just before the FB Casts
From there (I have it on Auto as I find it much easier to manage the CD and uptime on it that way, it is DPS loss by doing this though), I do the following:
Frostbolt (Gives IL based on Water Jet)
Frostbolt (Gives IL based on Water Jet)
Frost Bomb
Icy Veins + Ragewing's Firefang Trinket
Ice Lance
Frozen Orb
Ice Lance
Ice Lance
Frostfire Bolt
From here, I've already gotten 3 lances onto the bomb and usually get quite a few more. If you can get an additional 3 onto the boss before Icy Veins ends you will get 32 seconds out of it which will allow you to have the additional 30% Multistrike up until Mirror Images end. I kept Icy Veins up for 52 seconds yesterday and I assume people have kept it up for much more.
With hero on pull, I can quite easily hit 50-60k single target with the above, more with multiple targets in my 645 gear.
The problems with the spec obviously come into effect after this burst ends, when we come crashing back down over the course of the fight, from there on, I just ensure to get my bomb up with 2 lance procs which is guaranteed every 24 secs from Water Jet and complete the normal rotation.
Any suggestions / additions to the above or any openers with different talents are most welcome!