Black Tooth Grin Clan

The Black Tooth Grin Clan was an Orcish clan that rose to power during the Second War. Members of the clan, as a show of loyalty were required to knock out one of their own teeth before they could be trusted.

The Great Wars
The Black Tooth Grin Clan was originally part of the Blackrock Clan, however after the dethroning (and subsequent death) of Warchief Blackhand the Destroyer his two sons Rend Blackhand and Maim Blackhand sought to establish their own power base within the ranks of the Horde and thus formed the Black Tooth Grin Clan with forces from the Blackrock Clan that were loyal to them. During the Second War they were primarily responsible for spearheading attacks in the dwarven lands of Khaz Modan and guarded the Dark Portal from any would-be aggressors, however after the betrayal of Gul'dan which saw the Twilight's Hammer Clan and Stormreaver Clan abandon the Horde during the siege of Lordaeron City, the Black Tooth Grin Clan, along with Rend and Maim were sent after them by Orgrim Doomhammer.

After the defeat of the Horde during the Second War the majority of the Clan were slain by forces of the Alliance of Lordaeron. Those that survived fled with the remains of the Blackrock Clan into Blackrock Spire where they would reform into the Dark Horde under the command of both Rend and Maim. Inside the mountain they warred with the Dark Iron Clan of dwarves lead by Emperor Dagran Thaurissan for control over the mountain. During one such battle Maim Blackhand was slain, leaving Rend as the sole chieftain of both the Blackrock and Black Tooth Grin clans and sole Warchief of the Dark Horde. Allying his horde with the forces of Nefarian and the Black Dragonflight they claimed the top half of Blackrock Spire for themselves, forcing the Dark Irons into the depths of the mountain.

The Cataclysm
During the events of the Cataclysm, one of the first things that Deathwing did when he returned to Azeroth was raise his slain children Nefarian and Onyxia back from the grave. With Nefarian's return, the remaining forces of the Dark Horde including the Black Tooth Grin clan swore loyalty to Deathwing with the majority of the surviving members of the clan joining the Twilight's Hammer Cult

Following the second defeat of Nefarian and the destruction of Deathwing, the Black Tooth Grin clan has been completely crippled. With no leader and no powerful allies to back their hold on Blackrock Spire, their fate as of the events of the Pandaria Campaign hangs in the balance.