Originally Posted by
falarious
When you go to the Isle of Quel'Danas, you MIGHT get a buff called Kirus Song of Victory if you clear the sunwell (I think). This buff will give you 79 stamina and 40 intellect and will remove any other buffs you already had such as Arcane Intellect and Power Word: Fortitude. By accident I managed to come around this...
I was doing some arena today and got buffed with Fortitude and Arcane Intellect. Afterwards, I was then asked if I wanted to go do heroic magister's terrace. I said yeah and got a summon there. Half way into the instance I notice that I have all 3 buffs on! My mana and health were way WAY above normal!! I then clicked off the Arcane Intellect and tried buffing again and yep it worked without it disappearing!!