Hayreddin, the Territorial (Japanese: 縄張りハイレッディン, Nawabari Haireddin) is a Tyrant in Xenoblade Chronicles X. It is a Simius and can be found at level 81 on East Gate Plain in Primordia. During the day, it can be found wandering near the shore, and at night it can be found sleeping atop a rock formation along with other simius. Defeating it is required to complete the eponymous basic mission Hayreddin, the Territorial. Its Enraged aura grants it Invincible status. Hayreddin, the Territorial will gain the buff after about ten seconds in battle.