Thanks Millz, this works amazing.
Helpful for everyone. Get your potion of luck.
Set Ebonlocke as your focus so you know when he is casting Chaos Bolt.
Use a macro for your demonic teleport and stay in range of it as much as you can.
Do not use burning rush. Use unbound will instead(helps dispell just like the pit lords breath)
When you see Ebon start running to do his felhunter summon have your mouse ready to move your pitlord.
Kill felhunters.
Repeat.
Make sure to target the imps once, and it will auto target them as they die until they are all dead.