Originally Posted by
Axxym
Hey Tiki, I would suggest to start with the Destruction and Affliction guides that are stickied here at the Warlock forum. You should really consider having an Affliction offspec because it is superior on several encounters. I would recommend playing Affliction on Iron Reaver, Komrok, High Council, Socrethar (if you're not on Ghost duty), Vehlari, Zakuun, and Mannoroth. You could even squeeze it in on a few more if you like it.
But even with Destruction, you really should just start with the basics because I noticed in your Iskar kill you failed to cast Fire & Brimstone. That's a pretty useful ability on that fight with all the adds spawning. Also on your Kilrogg kill I noticed you used Havoc a little bit but you should really try to Havoc Chaos Bolts or Shadowburns, rather than any of your other abilities.
Your trinkets aren't terrible but don't underestimate how much power a good weapon and the set bonuses will garner. If you haven't already, set up a mouseover macro for Shadowburn and Havoc and adjust your nameplates so that they highlight mobs that are <20% HP.
With a new spec and some new knowledge, just queue up LFR over and over and put it to practice.