Quote Originally Posted by 16bitBounty View Post
Timer on them runs out. I believe it's a 10s upkeep and basically any AoE avoidance will cause you to lose the 3 stacks. Building them back up is where the DPS loss comes in.
This is not accurate. It's a 12s timer. Also, very few AoEs will force you to lose stacks. The exception is when you try to fit in 5 or 6 gcds into your rotation. If you are just doing 3-4, almost every Aoe gives you enough breathing room to run in and out in time.