Except why bring a mage when you can just bring 5 rogues?

Think

Say 2-3 Tanks, 6-7 Healers, the rest Dps

Boomkins, Dks, and Ret Pallys will all have spots as those 3 classes cover almost every utility ability given out in the recent changes.

So that will leave 10-12 spots open for any class you want.

Now considering this new Rogue ability, 6 second duration Misdirection onto the tank on a 30 second cooldown. Bring 5 rogues and you now have a permanent 15% dmg increase + threat increase from the 5 rogues keeping this up. No raid would ever need to worry about threat.

Rogue A uses ToT on Tank for 6 seconds
Rogue B uses ToT on Tank for 6 seconds once Rogue A's 6 seconds has expired
Rogue C follows Rogue B
Rogue D follows Rogue C
Rogue E follows Rogue D
and finally Rogue A's cooldown is now up and the cycle repeats itself.

Unless this spell gets its cooldown changed, or a debuff placed on whomever its used on preventing its use on that target again for X duration, atleast 5 Rogues will be brought to any min/max raid.

Considering Rogues have always complained about deserving their top spot in damage because of the lack of utility, and looking at what they will be receiving in the upcoming Rogue polish patch its safe to assume their damage will be as good if not better then it is currently. Couple that with this new very useful ability and Rogues are easily the best dps class to take until the the 5 rogue quota is reached.

Its a very poorly thought out spell class balance wise if it receives no changes from now till Live. Not saying it won't of course, it is still Beta.

And the PvP implications of it, hah.

Bad enough the class dominating PvP currently thanks to their wide variety of escapes/openers/cc abilities being on relatively short cooldowns, now just had most of them cut in half/reduced significantly, on top of now yet another ability which will grant a 6 second burst of 15% extra damage every 30 seconds. As if Cheat Death, Shadowstep, 1/2 minute CoS, 2/3 minute Sprint/Evasion/Vanish, Sap into Blind, and of course Preparation resetting all of those wasn't enough, now the dev team feels it necessary to give them an extra short duration trinket every 30 seconds.

Sure must be nice in Rogueland.