Key of Reason
Last updated 2025-12-17
ATK187
CRT11
ATK294
CRT18
Universal Blueprint
Charged cannon.
- 1st Sequence: Single shot.
- 2nd Sequence: Empowered double shot.
- 3rd Sequence: Super-powered triple shot.
Wielder deals 27% (35% at 5★) more Ice DMG.
Logical Construct
[SP: 5][CD: 25s] Attack with a constructor weapon to deal 340.2% + 9 x 53 + 300% (500% + 9 x 85 + 300% at 5★) ATK of Ice DMG. Final hit inflicts 10 Rime Trauma. After use, gain 45% Total DMG Multiplier for 7s. Herrscher of Reason equip bonus: Weapon active renders enemies Analyzed for 7s. Casting Ultimate restores 5 SP.
Added in Version 3.3. Found in:
❌ Events
❌ Foundry
✔️ Exchange House
✔️ Reserve Works
✔️ Limited/Rotating Supplies
Bronya constructed this cannon using the Core of Reason. It can be mounted on Project Bunny or deployed as hover guns. The Power to Rebuild of the Herrscher of Reason required years to fathom, but Bronya understood this cannon in mere seconds thanks to her prior knowledge of war and weaponry.
Key of Reason is a weapon in Honkai Impact 3rd.
Sources
- Supplies
- Reserve Works - purchasable at the cost of
Immutable Crystallum ×10.
Gallery
-
4-star model -
5-star model
Other Languages
| Language | Official NameOfficial Name | Literal TranslationLiteral Translation | |
|---|---|---|---|
| English | Key of Reason | — | |
| Chinese (Simplified) | 真理之钥 | ||
| Chinese (Traditional) |
真理之鑰 | ||
| Japanese | 真理の鍵 | Shinri no Kagi | Key of Truth |
| Korean | 진리의 열쇠 | ||
| French | Clé de raison | ||
| Thai | Key of Reason | — | |
| Vietnamese | Khóa Chân Lý | ||
| German | Schlüssel der Vernunft | ||
| Indonesian | Key of Reason | — | |
