Pretty crazy spec but it worked
When he starts dancing on the spot, move away from the front of him
Avoid the fire (obviously)
Move out of the way of charge which he indicates is coming with a big red line (which is also a knockback)
Only pop all dps cds when your sure your going to get the most out of them
To be honest, you are probably going to need to get lucky with the fire spawns aswell. I tend to find its a very rng fight.
Glad you liked it, mate. To farm anything in inferno mode i have to switch spec depending on what im about to fight so i dont really have a normal farming spec. In this video i put the build at the top of the post though if you wanted to see that.