"The ShadowTooth Clan is the only known dark troll organization. They aided the night elves, the Alliance and the Horde in the Battle of Mount Hyjal. Dark trolls may have derived from a single troll tribe given their few numbers, and this is the only known organization; but others tribes are believed to exist.
They lived in Dark Troll Dens and were recruited from a Mercenary Camp to aid the Great Alliance. After Archimonde was defeated and the Burning Legion scattered it is unknown what happened to this clan. "