In *Monster Hunter Wilds*, the apex predator of the Oilwell Basin region is an ancient monster known as the Black Flame, or Nu Udra. To safeguard the village from its threats, you'll need to take down this formidable beast.
Recommended Videos Monster Hunter Wilds Nu Udra Boss Fight Guide

Known Habitats: Oilwell Basin
Breakable Parts: Head and Arm
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
Attack the Tentacles
Nu Udra presents a formidable challenge in Monster Hunter Wilds due to its massive tentacles, which extend its reach and make dodging its attacks a daunting task. These tentacles, while a threat, are also the most accessible parts for melee weapon users to attack. Severing them not only provides additional materials but also reduces its offensive capabilities. Exercise caution, as these limbs are potent weapons in the monster's arsenal.
Aim for the Mouth
For those wielding ranged weapons, targeting options are more varied. The mouth of Nu Udra, despite being hard to locate due to its nearly pitch-black skin, is the prime target with a 4-star weakness. The head is another viable target, boasting a 3-star weakness to ammo damage, and is excellent for both blunt and cut damage.
Use Watermoss
Given Nu Udra's affinity for fire in Monster Hunter Wilds, it's wise to come prepared. Besides its tentacle attacks, it can unleash fire-based assaults, including setting itself ablaze, which inflicts the Fireblight debuff. Utilizing Watermoss to douse the creature is a smart strategy, enabling you to attack safely without succumbing to the status ailment.
Wear Fire Resistant Gear
If you find yourself struggling in this battle, consider equipping gear with fire resistance. The Quematrice armor set, featuring the Fire Resistance skill, is highly recommended. Additionally, decorations like the Fire Res Jewel can mitigate fire damage, while the Stream Jewel can enhance your water-based attacks.
Beware of Grab Attacks
One of Nu Udra's most lethal moves in Monster Hunter Wilds is its grab attack. If you're too close, it might seize you with its tentacles, followed by a deadly blast of fire. During the brief pause before the fire attack, you must act quickly to break free with a knife or target its weak spot using a Slinger.
Related: Monster Hunter Wilds Weapon Tier List (Best Weapons to Use)
How to Capture Nu Udra in Monster Hunter Wilds

To capture Nu Udra in Monster Hunter Wilds, you'll need to prepare either a Pitfall or Shock Trap. However, you must first weaken the monster by attacking it until it's on the brink of death, indicated by a skull icon next to its health bar. Once it's weak enough, place the trap. You can lure it into the trap with meat or by running behind it while it's targeting you. Once trapped, swiftly use a Tranquilizer to put it to sleep; you have a mere five seconds before it breaks free.
This comprehensive guide covers everything you need to know about defeating and capturing Nu Udra in Monster Hunter Wilds. Given the challenge of facing this monster solo, consider teaming up in multiplayer to increase your chances of success.
Monster Hunter Wilds is available now on PlayStation, Xbox, and PC.