On Manno Hellstorm

[WarcraftMages]

Other than dbm/bigwigs initial proc warning, is there a technical way to detect the black shadows on the ground per player for the use on a LUA trigger to avoid only having the visual indication? It's a seemingly unimportant mechanic at first that complicates things a lot come to think of it when Mark of Dooms are out.

[Nitros14]

For the first five doom lords, hellstorm will never happen during doom if you dispel the first three in phase 1 instantly, the first one in phase 2 instantly and delay the second phase 2 doom lord's dispel until 3 seconds on the debuff.

Other than that, make sure you're spread out when it's coming then collapse after the cast for imps, gaze etc.