Borderlands 4 Mercurious Review — Legendary SMG
| Rarity | Legendary |
|---|---|
| Type | SMG |
| Manufacturer | Vladof |
| Drop source | Chiselbella (The Demon's Domain) |
Red Text
The mighty giant-killer, stood there, spellbound.
This review was machine-translated from the Japanese original. Numbers are checked against the original; if the wording reads oddly, the Japanese version is authoritative.
The Vladof SMG, a go-to for the “mobility build” that gets more painful the more you run. It has the Fleet Footed effect that increases damage the more you move, making it stronger to run and shoot than to stand still. Chiselbella from Bounty Pack 2 “Legend of the Stone Demon” is the drop source.
🧩 Source of the red text “The mighty giant-killer, stood there, spellbound.” It conveys the image of a “giant killer” = a small one defeating a large enemy. The name “Mercurious” evokes the swift-footed god Mercury, matching the Fleet Footed effect. External specific story/source is (unverified) (David and Goliath story, etc., has no verified primary source).
What kind of SMG? (Beginner’s perspective)
- Vladof-made SMG. Movement Speed increases bullet damage the faster it is (Fleet Footed)
- Weak when standing still and shooting, the more you run or walk while shooting the stronger, a weapon based on mobility.
- Accuracy is slightly low (spreads), but it’s a type that pushes with fire rate and mobile firepower.
- Scales more when combined with builds/skills that boost movement speed.
Unique Effects (Mechanics)
Fleet Footed (Swift Footed): Bullet damage increases according to current Movement Speed.
- In-game: Fleet Footed — Bullet damage scales with movement speed
- Web (Lootlemon): Fires inaccurate bullets, dealing Gun Damage that increases based on current Movement Speed. Damage Scaler ≈ 0.5 × (1 + MoveSpeed^5/3) (Standing=0 / Walking=1 / Walking +10% Move Speed=1.1 …)
- Supplement (Mobalytics): Damage multiplier is pure multiplication. It is judged by actual movement (walking/running) speed, not the movement speed stat itself. Dashing has unstable judgment.
- Weakness: Low accuracy and spread / benefits disappear when standing still = continuous movement playstyle is assumed
Manufacturer Part Compatibility (License)
| Item | Content |
|---|---|
| Base Manufacturer | Vladof (Vladof) |
| Licensable Licenses (Web: MentalMars) | Atlas / CoV / Daedalus / Hyperion / Jakobs / Maliwan / Ripper / Tediore / Torgue (0–2 additional parts) + [ALT-Fire] Flamethrower / Taser |
| Note | Atlas-Licensed Tracker is well-suited for focusing on movement (reduces aiming burden) |
Drop Farming
| Drop Source | Chance | Notes |
|---|---|---|
| Chiselbella (The Demon’s Domain) | 9% | Heart of the Mountain Province / Terminus Range Region. UVH rank +2%/rank. Assumes possession of Stone Demon Bounty Pack |
- The exclusive drop source is Chiselbella (The Demon’s Domain). Set the save station as the spawn for farming.
- In Ultimate Vault Hunter Mode, drop rate increases by +2% per rank.
Build Compatibility
| Vault Hunter | Compatibility | Note |
|---|---|---|
| Rafa | ⭐⭐⭐ | General use |
| Vex | ⭐⭐⭐ | Good synergy with fire rate and movement speed |
| Amon | ⭐⭐⭐ | General use |
| C4SH | ⭐⭐⭐ | General use |
Summary
- Damage scales with movement speed (Fleet Footed) Vladof SMG. Assumes a playstyle that keeps moving.
- Accuracy is low but pushes with mobile firepower. Becomes stronger the more it matches a movement speed build.
- Obtainable from Chiselbella (The Demon’s Domain – 9% / Stone Demon Bounty Pack).
Related
- Same category (SMG): Matador’s Match / Onslaught / Prince Harming
- Reference: Lootlemon - Mercurious / MentalMars - Mercurious / Mobalytics - Mercurious
FAQ
What is Mercurious's unique effect?
Fleet Footed: bullet damage increases based on current movement speed.
Where can I obtain Mercurious?
It drops from Chiselbella (The Demon's Domain). Drop rate is 9%.