If you're looking to continue your journey to LFR domination, the third and final wing of Highmaul opened today. This last wing is home only to Imperator Mar'gok, and, like all other LFR wings, you'll need an ilvl of 615 to queue up. Need a helping hand taking Mar'gok out? There are some great guides to Mar'gok on other difficulty levels that will give you an idea of what to expect -- though, as always, his abilities will be dialed down for LFR difficulty.
Take a look through these guides to get an edge on the LFR competition: