Great Jagras Guide: How to Hunt, Defeat, and Craft Gear

by enricofairme · Published January 18, 2018 9:22 PM · Updated February 14, 2025 8:18 PM

The Great Jagras is one of the first monsters you’ll face in Monster Hunter World, and while it may seem like an intimidating challenge for beginners, it’s a great starting point for honing your skills. This large, iguana-like Fanged Wyvern is located in the Ancient Forest and presents a few unique mechanics to master. In this guide, we’ll walk you through everything you need to know: tracking, defeating, and crafting the gear associated with this monster.

Monster Overview

In this image, you can see the Great Jagras Physiology report. — Here is the Great Jagras Physiology report from the Ecological Research in Monster Hunter: World.

The Great Jagras is the leader of the Jagras pack and can be found in the Ancient Forest. While this monster is relatively easy for beginner players to hunt, it can still catch you off guard due to its unique Full Belly mechanic and aggressive behaviors.

As a Fanged Wyvern, Great Jagras has a significant advantage in size and speed compared to its pack members. It will become even more dangerous after swallowing prey, growing to monstrous proportions. When it’s hungry, Great Jagras may also attack larger creatures, making it more unpredictable.

Key Details:

Difficulty: Beginner (2⭐)
Location: Ancient Forest
Size: Large
Species: Fanged Wyvern
Weak To: Fire (3⭐), Thunder (2⭐), Ice (2⭐)
Breakable Parts: Head, Chest, Front Legs

Tracking the Great Jagras

Tracking the Great Jagras is relatively simple compared to more difficult monsters. You’ll need to follow its footprints and skid marks scattered across the Ancient Forest. As it moves through the environment, it leaves trails of these clues behind. Keep an eye out for them to stay on its track.

If you’re having trouble finding it, use your Scoutflies. They will lead you to the creature when you get close enough. Once you locate the Great Jagras, it will remain neutral until you choose to attack.

Great Jagras Fight Mechanics

Full Belly vs Skinny State

Full Belly: When Great Jagras swallows other creatures, it balloons to a larger size and enters its Full Belly state. In this state, its belly will be visibly swollen, and it can no longer move as freely. To weaken it, focus your attacks on its belly. Doing so will force the Great Jagras to vomit out its prey, returning it to its Skinny state and making it much weaker.

Skinny State: When the Great Jagras is not full, it will be smaller and more agile. It can still deliver powerful strikes, but it won’t be as formidable as when it has a full belly.

Great Jagras Attacks

The Great Jagras has different attacks based on whether it’s in its Full Belly or Skinny state. Below is a breakdown of these attacks:

Full Belly Great Jagras:

Roll: Rolls to crush you using its massive belly.
Charge: A quick charge attack to close the distance.
Front Slam: Uses its enlarged belly to slam into the ground.
Puke: Vomits on you up close or shoots projectiles when distant.
Strike: Will attempt to strike you with its head or body.

Skinny Great Jagras:

Lunge & Bite: Performs a lunging bite attack.
Charge: Charges towards you at high speed.
Tailwhip: Swings its tail to hit you if you’re near its tail.
Strike: Similar to Full Belly state, but with less power.

Fight Tips and Strategies

While Great Jagras is a relatively easy monster to defeat, it still poses some challenges for beginners. Here are some tips to help you overcome it:

Eat a Meal from the Canteen: Before every hunt, be sure to eat at the Canteen to improve your health and stamina. This is an essential step for surviving tougher fights.
Stay Close to Its Sides: In the Skinny state, Great Jagras lacks powerful attacks on its sides, so staying near its flanks will keep you safe. In Full Belly mode, watch out for the roll attack, but you can still stay close for safer attacks.
Exploit Elemental Weaknesses: Great Jagras is especially weak to Fire, so once you have access to elemental weapons, consider using a fire-based weapon for increased damage.
Focus on Its Belly: When in Full Belly mode, concentrate your attacks on its swollen stomach. This will cause it to vomit up its meal and revert to its weaker Skinny state.
Jump on Staggers/Knockdowns: Great Jagras can be knocked down or staggered. When this happens, take advantage of the opportunity to dish out as much damage as possible. Use the knockdown time to unleash your most powerful attacks.
Use Environmental Traps: If you’re fighting near environmental traps (such as trees in the beach area), lead Great Jagras into them to immobilize it and get some free hits.
Call for Help: If you’re having trouble, consider sending an SOS Flare to bring in other hunters for assistance.

Great Jagras Materials and Rewards

Defeating the Great Jagras will reward you with various materials that are essential for crafting weapons and armor. Here’s a breakdown of what you can expect to obtain:

Low Rank Carves and Rewards:

Scale (5⭐)
Claw (4⭐)
Hide (4⭐)
Mane (3⭐)
Iron Ore (3⭐)
Monster Bone(S) (3⭐)

High Rank Carves and Rewards:

Scale+ (5⭐)
Hide+ (4⭐)
Claw+ (4⭐)
Mane (3⭐)
M Bone+ (4⭐)

Armor Sets and Crafting Gear

The Great Jagras also provides materials used for crafting armor and weapons. Here’s a look at the armor sets you can craft from its materials.

Jagras Armor (Rarity 1)

Image of the Jargas Set on a female hunter. — The Jargas Set on a female hunter.

Image of the Jagras Set on a Palico. — The Jargas Set on a female hunter.

Human Armor Requirements:

Helmet: 2x Hide, 2x Mane, 2x Claw, 1x Ancient Bone
Mail: 2x Hide, 1x Claw, 2x Scale, 3x Monster Bone S
Vambraces: 2x Scale, 1x Hide, 3x Jagras Hide
Coil: 1x Hide, 1x Mane, 2x Scale, 2x Sharp Claw
Greaves: 1x Scale, 1x Hide, 1x Mane, 2x Scale

Palico Armor:

Gunhammer: 1x Claw
Helm: 1x Hide
Mail: 1x Mane

Jagras α + β Armor Sets (Rarity 5)

Image of Jagras α Set Female. — The Jagras α Set on a female hunter.

Image of Jagras β Set Female. — The Jagras α Set on a female hunter.