Sviatoslav, the Reproachful (Japanese: 慨世のスヴァストラフ, Gaisei no Suvasutorafu) is a Tyrant in Xenoblade Chronicles X. It is a member of the Aprica family. It can be found at level 39 at Balance Rock in Oblivia during rainy weather. Defeating it is required to complete the eponymous basic mission Sviatoslav, the Reproachful. It can drop the Redwood Aprica Antlers needed for Mayhem. It reflects ether damage.