Ammoron’s servant is named only in the account of Teancum’s death. Teancum, a Nephite captain who held Ammoron and his brother Amalickiah responsible for the long war between the Nephites and Lamanites, entered the Lamanite camp at night, found the king, and cast a javelin that pierced him near the heart. Ammoron awoke his servants before he died, and they pursued Teancum and killed him (Alma 62:35-36).
The record gives no name, identity, or further actions for the servant or servants who killed Teancum.