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Borderlands 4 Waterfall Review — Legendary Ordnance

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

Red Text
I'm only going to ask this once. Who. Is. JASON?!

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.

When a hit enemy explodes, the enemies killed by that explosion also explode — a “crowd clearing” grenade that chains like Domino Effect in dense areas. Made by Vladof, the impact explosion serves as the starting point for explosions to propagate from enemy to enemy. It’s a satisfying single throw to lob into a cluster of frozen grunts.

🧩 Origin of the red text “Who. Is. JASON?!” is a misheard version of the chorus “Don’t go chasing waterfalls” from TLC’s 1994 hit “Waterfalls”, heard as “Don’t go, Jason Waterfalls” (i.e., the name Jason Waterfall). This is a familiar inside joke in the Borderlands series. In Borderlands 3’s Eden-6, there is actually a location named “Jason Waterfalls” and even a “DO NOT GO” sign on the waterfall (Borderlands Wiki / MentalMars). The name (Waterfall) + red text (Who is JASON) + chain explosion (spreading like water flowing down) are consistent in this mishearing joke.

What kind of grenade? (Beginner’s perspective)

• Flies in a large arc and creates a 100% element splash explosion on impact
• Enemies damaged by the explosion then explode themselves (50%)
• Enemies killed by that explosion also explode (25)… chain from enemy to enemy
• Each chain halves the damage, but against a dense pack it can clear large numbers
• It does not chain on single bosses, so the trick is to treat it as for groups of grunts

Unique effects (Mechanics)

Impact causes 100% element splash explosion. Enemies damaged by the explosion explode themselves (50%) and enemies killed by that explosion also explode (25%). Each chain halves the damage, but it continues to propagate until it falls below 1.56%.

• In-game: Triggers an additional explosion when damaging a target
• Web (Lootlemon): Explodes on impact for 100% [Element] Splash. Enemies damaged explode for 50%, then 25%, each new explosion half the previous, not below 1.56% Damage.
• Strength: The more densely packed the enemies, the longer the chain extends = high area denial
• Weakness: The chain requires enemies that take damage from an explosion, so it is weak against isolated single targets

Drop farming

Build compatibility

Summary

• Domino-style chain explosions from enemy to enemy, a Legendary grenade that excels at crowd clearing
• The more you throw it into dense areas, the longer the chain and the more satisfying
• It does not chain on single bosses, so it’s for groups of grunts
• Obtained from Bio-Bulkhead (Synthetic Nave)
• The red text is a TLC “Waterfalls” mishearing joke (Jason Waterfalls)

Measured stats (aggregate of owned units)

This is an aggregation of measured values read from screenshots of owned units. The range is the observed minimum to maximum, with no conversion, rounding, or interpolation.

• Observed prefixes (most common): Concussive Bouquet×1 / Fully Loaded Relentless×1

Related

• Same category (grenade): Jelly / Swarm / Urchin
• Reference: Lootlemon - Waterfall / MentalMars - Waterfall / Borderlands Wiki - Waterfall