These are the leaders of
brute packs in the halo games, mostly halo 3. they are seen with enormous
crowns, thick black armor,and a huge
gravity hammer than can send you flying. they usually charge at you, using their invincibility perk, and unless you have some sort of miracle plan, they will kill you almost instantly.
Random kid playing on
halo 3 campaign- "Damn, this brute chieftain keeps killing me with his
gravity hammer. This is
impossible."