You see energy pulse.
Notes
When a Glooth-Generator becomes fully charged, it releases 4 Energy Pulses in the room which then destroy the Glooth-Generator and seriously damages anyone within range. Technically, it does not destroy the Glooth-Generator, rather the generator despawns itself, or the other Glooth-Generators would be destroyed also.
Abilities
Energy UE (5600+; vanishes after)Damage Taken From Elements
Physical 
Death 
Holy 
Ice
Fire
Energy
Earth
Drown
Location
Jaccus Maxxen's Dungeon - final boss room when spawned by Glooth-Generators.
Behaviour
Explodes, consuming itself and severely damaging anyone in range.
Strategy
Stay away from it, or even better, destroy the Glooth-Generators before they can spawn.