I have been doing magisters terrace on my priest alot and I know the place like the back of my hand. Almost all my groups are shit with no aoe or CC, so I use MC on every pull. One thing I found out is the one pat in the aoe room before the second boss does a shadow bolt volley that can solo most of the room (you have to clear a little to get to him/her). Right after you mind control the mob he will need heals, alot of them. This is realy easy if you have a paladin because you can just Blessing of Protection. I usually go with a ZA geared resto shaman and he can keep him up spamming his heals. It take about 4ish shadow bolt volleys to kill all the mobs, and the shadow bolt volley has a small cooldown so it will need heals for a while. I would only recommend this for groups with little or no aoe. I hope this isnt a repost and is easy to read.