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Eisen, the Ebon Rock (Japanese: 黒鉱のアイゼン, Kurokō no Aizen) is a Tyrant in Xenoblade Chronicles X. It is a member of the Petramand family. It can be found at level 51 on a rock in the lava river east of Ruined City of O'rrh Sim in Cauldros at night. Defeating it is required to complete the eponymous Basic Mission Eisen, the Ebon Rock.



Art Attribute Category Hits Range Effect Appendage Homing
Slash Physical Melee 1 Single - Arms -
Air Slash Electric Melee 1 Single Topple (Skell) Arms -
Ether Acid Ether Ranged 6-7 Single - Acid sac Yes


Part Item Type Rarity
Body Rainbow Metal Material Unique
Acid sac Malevolent Petramand Silk Material Rare
Head, Body Gray Shell Material Common
Body, Claw Ornate Petramand Claw Material Rare
Body Iron Lump Material Rare
Body, Claw Cracked Claw Material Common
Body Petramand C Holofigure Intergalactic


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