I used it in AS, didn't see it remove any ground effects unfortunately.
I think I saw it remove the sun-eaters ground negates in Maw (normal), but I'm not 100% sure.
Former Empresses: Saliva Bortschion (MagBlade), Janet From Finance (PvP MagSorc), Carla Swagan (Tank DK), Estelle Born (StamBlade), Enya Arsenal (MagPlar), Anita Nurse (Magplar Healer), Bearback Brigitte (Magden), Rachel Justice (MagDK), Nicole From Payroll (Stamden), Bailiff Belinda (PvE MagSorc), Féline Dion (StamDK), Septic Tank Tina (Necro Tank)
The runts: The Trolly Spirit (Tank Sorc), Floods-Your-Basement (Warden Healer) Dinah Asthma (Magcro), Total Top Tony (Stamcro)
The traitors: Janis Javelin (Stamplar, EP), Barbecue Becky (Magblade Healer, AD)
Looking forward to hearing the answer to this as well. I have been unable to find a good use for the set. It doesn't seem to work on anything I would want it to (have found zero effects it removes in any 12 man trial).
Edited by WrathOfInnos on October 25, 2017 10:24PM
I was watching hodor's videos of AS and saw the earthgore proc go off but don't know if they were also testing it or actually found a use for it in AS (which would be very cool)
Edited by TheNightflame on October 25, 2017 10:25PM