Originally Posted by
Nemah
For the felhunters specifically I found the best way to deal with them was to put my teleporter at the left of the gate Kanrethad comes in and behind it. When the boss starts casting the summoning spell, I teleported there, dropped a rain of fire to snag aggro on them, and popped cooldowns. Burned the first felhunter down, shadowfury'd the next two and immolated them both.
I use the Pit Lord's charge ability on them, then the Fel Flame Breath. Only on one or two attempts did I have to polish the felhunters off with something.
What I noticed here, is that without moving the Pit Lord anywhere, that the felhunters either do not - or have a greatly reduced chance - consistently devour the enslave in this location. It might be that they don't have time, I don't know - but I found this to be extremely effective when dealing with them.