...

I have no clue what you're talking about. It's quite overpowered. I can do more DPS on my hunter (who's equipped with a LFR/397 hybrid set) than a hunter who's in 397 and heroic DS gear because of that ability. When I use all my cooldowns, I use all my cooldowns. Berserking (20% attack speed; activated); Rapid Fire (40% attack speed -- 50% glyphed; activated); Kiroptyric Sigil (+2290 agility; activated); Kiril, Fury of Beasts (+950 agility; proc); Starcatcher Compass (~20% haste; proc); Call of the Wild (10% attack power; activated); Potion of the Tol'vir (+1200 agility; activated). Together, that's 80% faster attack speed, +4440 agility, 10% attack power, and ~20% more haste; this equates to a 116% attack speed increase. Berserking accounts for 36% of that attack speed. That's a lot.

__________________