In Magister's Terrace the magisters have a buff called Enchantment of spell haste. Every time they cast they get magic buff that increases spell casting speed by 10% and stacking up to 20 times (although it would be hard for them to cast that much before they die). Mages can spellsteal this buff 20 times and get 200% haste, but to do that you would have to have nobody dpsing and it just hitting the tank for a while. I wouldn't recomend doing this unless its on the pull RIGHT before the priestess boss (third boss), because it would be a waste anywhere else. If you have a mage get 20 stacks of it then pull the third boss quick you can NUKE down the bosses quick spamming a 1 second pyroblast or how ever fast it would be, making the third boss realy easy for bad groups, or groups without pvp gear. You might even be able to kill the priestess before she gets to you.