You see a sphere of wrath
Notes
Up to 4 Spheres will spawn as you cause damage to The False God during the Cults of Tibia Quest.
Abilities
Melee (0-250+)
Energy Berserk (600-1700+)Damage Taken From Elements
Physical 
Death 
Holy
Ice
Fire
Energy
Earth
Location
Minotaur Cult hideout near Mintwallin.
Behaviour
They fight in close combat but move very slowly.
Strategy
They cannot be killed, so you shouldn't waste your time trying to do that. Instead, run from them and focus on the other creatures in the room, they move very slowly and their damage can easily be avoided.
During the early stage of the fight when there are only 1-2 spheres you may be able to lure them to one side of the room while you then run and lure the boss to the other. This can give you around 10 seconds without having to worry about the spheres until they teleport to the center of the room and re target.