 | Name | Ominous Mask |
| Type (Ingame) | Character and Weapon Enhancement Material | |
| Family | Character Ascension Item, Char Common Item, Weapon Ascension Item, Wep Common Item, Talent Item, Talent Common Item, Crafted Item | |
| Rarity |  | |
| Alternative Item Source (Ingame) | Dropped by Lv. 60+ hilichurls Dropped uncommonly by Lv. 60+ Hilichurl Shooters Dropped uncommonly by Lv. 60+ samachurls Dropped uncommonly by Lv. 60+ mitachurls Dropped uncommonly by Lv. 60+ lawachurls | |
| Description | A glossy bone mask with oil markings painted on it, meant to intimidate enemies. No one really knows why hilichurls are so fascinated with masks. Some say that it's because they don't want to see their own reflections in the water. | |
| Description (Codex) | A glossy bone mask with oil markings painted on it, meant to intimidate enemies. No one really knows why hilichurls are so fascinated with masks. Some say that it's because they don't want to see their own reflections in the water. |
| Table of Content |
| Obtained From |
| Used By |
| Gallery |
Obtained From
Drop
| Icon | Name | Grade | Drop |
 | Hilichurl | Regular |     |
 | Hilichurl Fighter | Regular | |
 | Hilichurl Berserker | Regular | |
 | Wooden Shield Hilichurl Guard | Regular | |
 | Ice Shield Hilichurl Guard | Regular | |
 | Rock Shield Hilichurl Guard | Regular | |
 | Hilichurl Shooter | Regular |    |
 | Pyro Hilichurl Shooter | Regular | |
 | Electro Hilichurl Shooter | Regular | |
 | Cryo Hilichurl Shooter | Regular | |
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Recipe
| Icon | Name | Recipe |
| Ominous Mask | |
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Shop
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Used By
Character
| Icon | Name | Rarity | Weapon | Element | Ascension Materials |
 | Jean | 5 | sword | anemo |      |
 | Traveler | 5 | sword | none |     |
 | Traveler | 5 | sword | none | |
 | Razor | 4 | claymore | electro |     |
 | Xingqiu | 4 | sword | hydro |      |
 | Noelle | 4 | claymore | geo |    |
 | Chongyun | 4 | claymore | cryo |      |
 | Eula | 5 | claymore | cryo |   |
 | Kujou Sara | 4 | bow | electro |     |
 | Yun Jin | 4 | polearm | geo |   |
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Weapon
| Icon | Name | Rarity | Atk | Sub | Value | Weapon Affix | Ascension Materials |
 | Dark Iron Sword | 3 | 38.74 | EM | 30.6 | Upon causing an Overloaded, Superconduct, Electro-Charged, Quicken, Aggravate, Hyperbloom, or Electro-infused Swirl reaction, ATK is increased by |   |
 | Royal Longsword | 4 | 42.4 | Atk% | 9% | Upon damaging an opponent, increases CRIT Rate by |   |
 | Cinnabar Spindle | 4 | 41.07 | Def% | 15.01% | Elemental Skill DMG is increased by |  |
 | Wolf-Fang | 4 | 42.4 | CrR% | 6% | DMG dealt by Elemental Skill and Elemental Burst is increased by | |
 | Summit Shaper | 5 | 45.94 | Atk% | 10.8% | Increases Shield Strength by | |
 | Debate Club | 3 | 38.74 | Atk% | 7.66% | After using an Elemental Skill, on hit, Normal and Charged Attacks deal additional DMG equal to |   |
 | Prototype Archaic | 4 | 43.73 | Atk% | 6% | On hit, Normal or Charged Attacks have a 50% chance to deal an additional |   |
 | Song of Broken Pines | 5 | 49.14 | Phys% | 4.5% | A part of the "Millennial Movement" that wanders amidst the winds. Increases ATK by | |
 | Prototype Starglitter | 4 | 42.4 | ER% | 10% | After using an Elemental Skill, increases Normal and Charged Attack DMG by | |
 | Otherworldly Story | 3 | 38.74 | ER% | 8.5% | Picking up an Elemental Energy Orb/Particle recovers |  |
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it's a skin