But Aun'Va was not merely a spiritual leader, for in Tau history there are many instances of him leading the Tau expansion from the very beginning of their conquests. His presence gave the Fire Caste the will to rid the Si'coa System of the hateful aliens known as the Reek, his words sending them into a righteous rage. Upon the flanks of Mount Scion he pronounced the fate of the Orks of the WAAAGH! Grognik — a sentence that was efficiently enacted by ten thousand Fire Warriors.