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Borderlands 4 Glacier Review — Legendary エンハンスメント

Published: 9/11/2026 · Updated: 11/15/2026 · As of 2026-07

Red Text
（未確認）

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.

Enhancement part that turns a gun equipped with a COV‑approved magazine into a “gun that doesn’t stop due to heat”. Even when firing, there is a 25% chance that heat generation becomes zero, and while heat remains low, damage is increased. It is a single piece with a clearly defined purpose that only makes sense in builds centered around COV magazines.

🧩 Source of the red text The physical card (Lv40 / #73e9100a) has not been confirmed to have a red text line (the enhancement part may not have red text). The name Glacier matches the fact that both parks work to suppress heat (Heat). Since COV guns have the weakness of becoming unusable with Overheat, the reading is to cool them with “Glacier”. External source is (unverified).

What kind of enhancement part? (Beginner’s perspective)

• COV exclusive. Both effects require a gun equipped with a Children of Volt approved magazine, and they have no effect on guns without a COV magazine.
• Directly addresses the COV gun weakness Overheat. Even when firing continuously, heat rises less, and while low heat is maintained, firepower also increases.
• Conversely, choose your build. If you don’t use a COV magazine, it’s death weight

Unique effects (mechanics)

Ventilator: Children of Volt approved magazine-equipped guns have a 25% chance that heat generation becomes 0 when firing

Cold Open: Children of Volt approved magazine-equipped guns have heat 50% or less, and damage +20% increase

• The two parks synergize. Ventilator makes heat accumulate less → easier to keep heat at 50% or below → Cold Open’s +20% stays active
• Both are probability/condition based, so the feel is close to “sometimes heat doesn’t build up” and “generally firepower is up by about 20%”
• The Legendary enhancement part, in addition to the above manufacturer parks, grants one ability from 21 types across 4 categories per individual (unverified)

Manufacturer part compatibility / Augments (selected)

Prefix (roll name) and park/augment are separate axes Both of the two measured individuals have the prefix Erupting. In the confirmed table of measured records, Erupting (Erupting / enhancement part) → Accuracy Boost (first park type) remains (unverified) (effectively only one individual). Refer to this article’s measured roll table.

Verification Needed

• Presence or absence of red text and main text (whether the enhancement part has a red text line is unverified)
• Drop source (verification of the claim that probability increases in Bloomreaper’s platinum loot chest)
• Specifics of the “one ability from 21 types across 4 categories” that attaches per individual
• Correspondence between prefix Erupting and park type (pending in the confirmed table)

Sources

• Physical card: #73e9100a (Lv40) / #ddd865b0 (Lv40 / different individual) — The card displays in Japanese as Erupting Glacier
• English name, manufacturer, park wording: Lootlemon — Glacier • BL4 Legendary Enhancement (matches the two parks on the actual card)
• List: Lootlemon — Enhancements List / Game8 — List of Enhancements / MentalMars — Borderlands 4 Enhancements