The apex predator of the Oilwell Basin region in Monster Hunter Wilds is an ancient monster called the Black Flame, or Nu Udra. Players must defeat this formidable creature to protect nearby settlements from its destructive capabilities.
Recommended Videos
Monster Hunter Wilds Nu Udra Boss Fight Guide

Screenshot by The Escapist- Known Habitats – Oilwell Basin
- Breakable Parts – Head and Arms
- Recommended Elemental Attack – Water
- Effective Status Effects – Poison (2x), Sleep (2x), Paralysis (1x), Blastblight (1x), Stun (2x), Exhaust (2x)
- Effective Items – Pitfall Trap, Shock Trap
Target the Tentacles
Nu Udra presents a significant challenge in Monster Hunter Wilds due to its massive tentacles granting exceptional range, complicating evasion tactics. These appendages serve as prime targets for melee combatants. While severing them yields additional crafting materials, hunters should remain cautious as these limbs remain dangerous offensive tools.
Focus Attacks on the Mouth
Ranged weapon users enjoy greater tactical flexibility but should prioritize targeting Nu Udra's mouth despite its dark coloration making identification difficult. This vulnerable spot maintains a four-star weakness rating. The head presents a secondary option with a three-star weakness rating for ammunition, while remaining effective for blunt and cutting attacks.
Utilize Watermoss
The creature exhibits strong fire affinity, employing devastating flame attacks alongside physical strikes. During combat phases, Nu Udra will self-ignite, applying dangerous Fireblight effects to nearby hunters. Strategic Watermoss deployment neutralizes this threat, enabling safer engagement opportunities.
Equip Flame-Resistant Armor
Hunters encountering difficulties should prioritize fire-resistant equipment. The Quematrice armor set proves particularly effective with its innate Fire Resistance skill. Supplemental decorations like Fire Res Jewels provide additional protection, while Stream Jewels enhance water-based attack potency.
Avoid Entrapment Attacks
Among Nu Udra's diverse attack patterns, its grasping maneuver poses particular danger. Nearby hunters risk capture by its tentacles, followed by devastating flame breath. Immediate retaliation with knives or targeted Slinger attacks represents the optimal escape strategy during these moments.
Related: Monster Hunter Wilds Weapon Tier List (Best Weapons to Use)
Nu Udra Capture Methodology

Screenshot by The EscapistSuccessful captivity requires careful preparation of either Pitfall or Shock Traps, though deployment timing remains crucial. Hunters must first weaken Nu Udra significantly, monitoring for the skull indicator near its health bar. While bait meats offer potential lure opportunities, strategic positioning behind traps as the creature engages proves equally effective followed immediately by tranquilizer application during the brief five-second capture window.
This comprehensive guide covers all essential tactics for both defeating and capturing Nu Udra in Monster Hunter Wilds. Given the creature's formidable nature, multiplayer cooperation represents a prudent strategic choice.
Monster Hunter Wilds is available now on PlayStation, Xbox, and PC.