Who gets the Fatuity effect from The Fatuity Mystery?

Only Witness characters: Argos, Cynthia II and Grimm in the current roster. None of our build pages pick it yet, so on anyone else it only adds its 2,646 HP and 370 ATK at Lv. 80.

Is it worth getting duplicates of The Fatuity Mystery?

Each duplicate raises its Resonation Tier by one, up to Tier 5. From Tier 1 to Tier 5 its scaling values go from 18 to 36. At Tier 5 it reads: "The character using this Motive deals +36% DMG to enemies with over 80% HP remaining."

How strong is The Fatuity Mystery at Lv. 80, and what does it cost?

2,646 HP and 370 ATK, the highest ATK among the 12 three-star Motives (shared with 7 others). Reaching Lv. 80 takes 17,200 Ounce, 7 Witness's Instinct, 5 Witness's Insight, 5 Witness's Challenge and 10 Witness's Legacy.

The Fatuity Mystery

Updated 1 November 2026 · 3-star · Witness · 370 ATK at Lv. 80

The Fatuity Mystery is a 3-star Witness Motive (weapon) in Silver Palace, with 370 ATK and 2,646 HP at Lv. 80. Its Fatuity effect at Tier 1: The character using this Motive deals +18% DMG to enemies with over 80% HP remaining. Only Witness characters get it: Argos, Cynthia II, Grimm.

Stats by level

Lv. 1 to 80

LevelLv. 80

Base HP

2,646Lv. 80

Lv. 1 · 120×22.1 from Lv. 1

Base ATK

370Lv. 80

Lv. 1 · 16×23.1 from Lv. 1

Max level in the beta files.

Fatuity effect

Resonation Tier 1 to 5

One copy

The character using this Motive deals +18% DMG to enemies with over 80% HP remaining.

Each duplicate raises the Resonation Tier by one. Only Witness characters get this effect: Argos, Cynthia II and Grimm.

Breakthrough materials

Six breakthroughs, Lv. 20 to 70

Lv. 20
- ×2
800Ounce
Lv. 30
- ×5
1,200Ounce
Lv. 40
- ×5
1,600Ounce
Lv. 50
- ×5
2,400Ounce
Lv. 60
- ×4
3,200Ounce
Lv. 70
- ×6
8,000Ounce
Total
- ×7
- ×5
- ×5
- ×10
17,200Ounce

Books in the total, left to right: Witness's Instinct, Witness's Insight, Witness's Challenge, Witness's Legacy. Where they drop is on the Motives page.

In the database

One of 7 Witness Motives, 2 of them 3-star.
Its 370 ATK at Lv. 80 is tied for the highest among the 12 three-star Motives (8 share it).

Lore

The butter was whipped a touch too soon, and the sugar fell short by a quarter ounce. The berries weren't fully ripe, and even the sparrows refused to take a bite of this.
But never mind, rest a while by the fire's warmth.
The bread will be baked, one way or another. Once it's out of the oven, she'll turn those peculiar flavours into something called "happiness".

Data compiled from the Dichotomy beta game files, checked 1 November 2026. Launch is 14 December 2026 (UTC+8), and names and numbers can change before then.

Frequently asked questions

3 answers, always open

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Who gets the Fatuity effect from The Fatuity Mystery?: Only Witness characters: Argos, Cynthia II and Grimm in the current roster. None of our build pages pick it yet, so on anyone else it only adds its 2,646 HP and 370 ATK at Lv. 80.
Is it worth getting duplicates of The Fatuity Mystery?: Each duplicate raises its Resonation Tier by one, up to Tier 5. From Tier 1 to Tier 5 its scaling values go from 18 to 36. At Tier 5 it reads: "The character using this Motive deals +36% DMG to enemies with over 80% HP remaining."
How strong is The Fatuity Mystery at Lv. 80, and what does it cost?: 2,646 HP and 370 ATK, the highest ATK among the 12 three-star Motives (shared with 7 others). Reaching Lv. 80 takes 17,200 Ounce, 7 Witness's Instinct, 5 Witness's Insight, 5 Witness's Challenge and 10 Witness's Legacy.