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Gradivus, the Headless Emperor (Japanese: 首無皇帝グラデウス, Kubinashi Kōtei Guradeusu) is a Tyrant in Xenoblade Chronicles X. It is a member of the Millesaur family. It can be found at level 71 at the North Coast in Oblivia after completing Chapter 12. It can summon Parasite Gerrids for assistance. When it does so, it changes the attribute of the projectile arts it uses.

While Gradivus may not be as offensively capable as higher-leveled Tyrants, it does have the largest amount of HP of any enemy.



Art Attribute Category Hits Range Effect Appendage Homing
Tail Swing Physical Melee 1 Single Topple Tail -
Stomp Physical Melee 1 Circle around foot Stagger Feet -
Drill Stomp Gravity Melee 1 Circle around caster Launch Feet -
Inferno Missile Thermal Ranged 6 Single - - Yes
Roar Physical Ranged 1 Sphere around caster Slow Arts, Flinch, Debuff Res Down - -
Dino Mortar Thermal Ranged 1 Single Topple, Blaze - Yes
Multi Dino Mortar Thermal Ranged 4 Single - - Yes
Thunder Flash Electric Ranged 4 Single Fatigue - Yes
Multi Thunder Mortar Electric Ranged 3 Single Shock, Stun - Yes
Thunder Mortar Electric Ranged 1 Single Shock, Flinch - Yes
Ether Laser Ether Ranged 6 Single Physical Res Down - Yes
Ether Mortar Ether Ranged 1 Single Stagger, Ether Res Down or HP Recovery Down - Yes
Inferno Mortar Thermal Ranged 6 Single Blaze - Yes
Sand Breath Physical Ranged 4 Frontal Arc Stagger, Blackout - -
Eject Parasite - Status - Self Summon Gerrid, change attack attribute - -
Energy Drain Ether Ranged 1 Frontal Arc Flinch, TP Drain - -


Part Item Type Rarity
Body Millesaur Larynx Material Prime
Tail Millesaur Dung Material Prime
Body Thick Millesaur Hide Material Prime
Body Obsidian Cluster Material Prime
Leg Tough Tendon Material Prime
Body Obsidian Fragment Material Unique
Body Rugged Skin Material Common
Body Gradivus Holofigure Intergalactic
Body Ultra Infinite Yii Armor Rare-Prime
Body Ultra Infinite Yimsel Armor Rare-Prime
Body Ultra Infinite Yiys L Armor Rare-Prime
Body Ultra Infinite Yiys R Armor Rare-Prime
Body Ultra Infinite Yiym Armor Rare-Prime
Body SSM-XXMX260SA E-Scythe Skell Weapon Intergalactic
Body SHM-XXM160ME Heat-Edge Skell Weapon Intergalactic
Body SRM-XXM160GG Javelin Skell Weapon Intergalactic
Body Reflect.ADD-PHYS Augment Unique
Body Reflect.ADD-THERM Augment Unique

Additional Details

"This millesaur is infected with a parasite that makes it both hungry and angry. Territorial brawls have long-since ruined the regenerative ability of its false head."


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