Quote Originally Posted by Shurrikhan View Post
You realize that CoS would then be a 550n-potency ability, right? With just 3 GCDs setup, it'd be almost 40% stronger than Deathflare (almost 50% if you compare FoF vs. RS), or almost roughly twice the damage of Warrior's Decimate.
This also wouldn't reduce Flash or RoH usage (except by allowing for a higher portion of RA given the massive GB-CoS enmity spike). It would only prevent GB rotation, using it instead only every 3 to 4 combos (to ensure the full duration is ready for CoS spread, if high skill speeds would otherwise waste 3-5 seconds' duration).
While Im not currently looking at all the comparable numbers like CD timers, you'd lose 15% dmg from tank stance in larger pulls, and stopping to flash between would effect your over all dmg done.

I honestly dont think it's as broken as you make it out to sound. (But its a good reference to compare it to them)
Another possibility, is just lowering the potency of the GB DoT when spread by CoS. (Though I'd not really like this option too much, due to the fact most mobs should be near dead by the time u even land this attack.)