When Thrall managed art of shamanism, he raised together with Doomhammer an army against humans. Orcs won but Doomhammer died. In his last moments he granted Thrall the title of Warchief. Thrall decided to attack human base, home of Aedelas Blackmoore. He wanted to rescue imprisoned orcs there. They attacked and they succeeded in taking base. But only Blackmoore remained alive. Thrall went to his house, and when he entered he saw Blackmoore standing over dead body of Taretha. Angry Thrall killed blackmoore without any mercy. At the end he crushed base using his shamanistic powers and he informed other orc clans that they have new leader.