Gath'Ilzogg made alliance with human warlock Morganth. Fueled by Morganth's evil magic, the Blackrock orcs attacked Stonewatch Keep in Redridge. They fought with horrific savagery and captured the Keep. Shortly after their victory, Morganth turned on his orcish cohorts. He built a small army of Shadowhide gnolls led by Lieutenant Fangore. Both orc and man have fallen victim to the brutes that serve Morganth.
It is known that Gath'Ilzogg also led raids against the township of Lakeshire. He is reportedly holed up in the recently conquered keep plotting the Blackrock clan's further crimes against humanity. Magistrate Solomon thinks he is extremely dangerous and has put a reward upon Gath'Ilzogg's head.
Gath'Ilzogg's axe was made by Martek the Exiled, although, he is wearing a sword in-game.