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Borderlands 4 Mercredi Review — Legendary Assault Rifle

Published: 8/15/2026 · Updated: 11/15/2026 · As of 2026-07

Red Text
Lord Tuesday wishes to speak of burgers.

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.

An assault rifle made by Daedalus whose firing method changes each reload, and damage stacks the longer you keep aiming. With an Atlas License underbarrel that fires darts, it also has the “ease of hit” of projectiles homing onto tagged enemies. Vault Card reward from DLC (Bounty Pack 2 “Legend of the Stone Demon”).

🧩 Source of the red text “Lord Tuesday wishes to speak of burgers.” is a parody of Popeye character Wimpy’s catchphrase “I’d gladly pay you Tuesday for a hamburger today.” (MentalMars / Mobalytics summary). Weapon name “Mercredi” is French for “Wednesday”, a wordplay rhyming with “Tuesday/Wednesday”.

What kind of assault rifle? (Beginner’s perspective)

• Daedalus-made AR. Reload switches firing style (Cyclical) irregular behavior
• While target-locked, damage stacks as 1Stack=+50% = the longer you keep aiming at the same enemy, the stronger
• Atlas License underbarrel fires Tracker darts/grenades, and its projectiles home onto tagged enemies
• DLC reward (Vault Card) so cannot be obtained without Bounty Pack 2

Unique Effects (Mechanics)

Cyclical: Reload each time switches firing style. While target-locked gain a Stack buff, 1Stack = Damage +50%.

• In-game: Cyclical — Cycles between different firing styles on Reload. While Target-Locked, gain +50% Damage per stack.
• Web (Lootlemon): Reload cycles firing style / While target-locked, Stack-style buff gives +50% damage/Stack
• Atlas License Underbarrel: Fires Tracker darts/grenades, tagging enemies (projectile tracks for 10/8 seconds).
• Weakness: Stack assumes target-lock maintenance = stack resets when lock breaks

🔎 Atlas Target Lock A system by Atlas that tags enemies to make projectiles home. Tracker darts last about 10 seconds / grenades about 8 seconds. Darts can crit where they hit / grenades mark the torso center. ⚠️ Only the Atlas gun that applied the lock has its projectiles home; switching to other weapons does not inherit it (confirmed on hardware • 2026-08-04). → Mercredi is self-contained because it has its own Atlas underbarrel. However, whether switching to another Atlas gun that locked the enemy will apply Stack is unlikely to work since homing is per gun (unverified). The basic operation is to cycle darts → main fire → reload (style switch) with a single weapon. Details: BL4 item generation mechanics

Drop Farming

• Acquisition: DLC Vault Card reward. Not a random farm target, but ticket exchange.

Build Compatibility

Summary

• Reload changes firing style, and the Daedalus-made AR has damage increase of Stack while target-locked.
• With Atlas License darts, it also has tagging → homing ease (homing only works for this gun’s own projectiles = single-weapon operation).
• Acquisition is via Bounty Pack 2 Vault Card (DLC required • ticket exchange).
• The name is French for “Wednesday”, and the red text is a parody of Popeye’s Wimpy.

Related

• Same manufacturer (Daedalus): Oscar Mike / Super Soldier
• Same category (Assault Rifle): Lucian’s Flank / Murmur
• Reference: Lootlemon - Mercredi / Borderlands Wiki - Mercredi