[Phaethon]

Recently I saw a video of a 10man Shannox kill, and it was one of the earliest I could find (Wednesday) but I haven't been able to find it since. The POV was a warlock and he was using DOT timers that were vertical as well as another addon that is maybe similar to event horizon where it shows your priorities on an animated bar that moves from right to left. Any help would be appreciated. =)