Ok someone posted similar idea about this first tip, but I will explain what I do and maybe it will help some of you. For the 3 waves of Champs ( before the 3 grand champs ) i pre target left one with my tank and 2 of my shaman. I then target the center one with a shaman and the 3rd with the last sham. I then use the shield breaker, default #2 button, to pull the group. This removes the shield on all of them. Once they are on my group I use my macro for spamming 1 and 2 button. It also spreads out the agro and i never have to switch mounts, most the time, until I have dismounted one of the Grand Champions.

Another tip for phase 2 of black Knight, this has been said a few times but to clairify. KILL THE ADDS.. no need to burn him down.. focus all your effort in phase 2 on gathering the adds with your tank and kill them, ignore ( but keep agro ) the BK until all adds are dead. Makes phase2 easy mode as well. I use fire elementals on that phase. He never spawns another army, and focusing on him can have you lose track of an exploding ghoul. Kill those bastards first, then hes easy tank and spank!

Next tip>> Black knight Phase 3. I have found out that that ae spell he cast in this phase is DEADLY if you are at range! However! It is WEAK in melee range! keep your toons at range for phase one and two. then either use interact with target or your follow button/macro and group right up on him for the final phase. EASY MODE!

Hope this helps some of you that have not beat the BK yet!