This article is a comprehensive guide to Tetherlash in Duet Night Abyss (DNA), covering their rating, recommended characters, stats and skills,how to get, and more.
All Weapon ListTable of Contents
Tetherlash Tier and Stats / Skill

| Category | Weapon Type | DMG Type |
|---|---|---|
| Melee | Whipsword | Smash |
Weapon Stats
| ATK | 19 | Explosion Range | - |
|---|---|---|---|
| ATK(Lv.Max) | 238.49 | ATK Range | - |
| Crit Chance | 18% | Multishot | - |
| Crit DMG | 215% | Mag Cap. | - |
| ATK Speed | 1 | Max Ammo | - |
| Trigger Prob | 30% | Ammo Conv. Rate | - |
Weapon Skill
| Default | Skill Duration +18.0% |
|---|---|
| Max | Skill Duration +36.0% |
How to Get Tetherlash
Exchange With Secret Letter Clues

Tetherlash's Secret Letter can be exchanged with Secret Letter Clues in the Shop. 1 Secret Letter will require 10 Secret Letter Clues. The shop is unlocked upon gaining access to the Sanctuary in Act 1.
How To Get Secret Letter CluesUse Secret Letters in Covert Commissions

Secret Letters can be used during Covert Commissions to get a chance for the weapon's blueprint and materials to drop. Since Tetherlash is a Whipsword, it will only need 2 weapon-specific components. Blueprints are consumed when forging a weapon. You will need a total of 6 blueprints and the corresponding materials to fully max a weapon.
Recomended Characters
| Character | Explanation |
|---|---|
Truffle and Filbert | - The Skill Duration pairs perfectly well with Support characters since it extends the duration that their buffs remain active on allies. |
Lynn | - For characters with toggleable skills like Lynn, Skill Duration translates into Skill Efficiency, allowing them to increase the uptime of their skills. |
Phantasio | - Since Phantasio primarily uses his Ultimate to deal damage, having additional duration allows him to stay within his Ultimate form for a longer time. |