OSRS Osmumten's Fang Guide

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Osmumten's Fang Guide OSRS

Embark on a journey into the heart of Old School RuneScape (OSRS), where legendary weapons await those brave enough to seek them. In this guide, we unravel the mysteries surrounding Osmumten's Fang, a one-handed stab weapon shrouded in the rich history of the Tombs of Amascut. From its origins to its unique combat mechanics, this guide aims not only to educate but also to inspire new adventurers to join the vibrant world of OSRS. Let's delve into the secrets of Osmumten's Fang and learn how it can become your trusty companion on the battlefield.

OSRS Osmumten's fang

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What is Osmumten's Fang?

Osmumten's Fang is a formidable one-handed stab weapon, a rare treasure obtained from the perilous depths of the Tombs of Amascut. Crafted as the weapon of Pharaoh Osmumten, a skilled hunter of ancient times, this weapon requires a formidable level 82 Attack to wield. As you traverse the vast landscapes of OSRS, Osmumten's Fang stands as a testament to the strength and precision of its wielder.

Where Can You Obtain Osmumten's Fang?

The elusive Osmumten's Fang reveals itself as a rare reward within the Tombs of Amascut. Only the bravest and most skilled adventurers, venturing into the depths of this tomb, can hope to claim this powerful weapon. As you join the quest for this rare item, remember that the journey is as important as the destination.

Tombs of Amascut

Stats of Osmumten's Fang

Osmumten's Fang is not just a weapon; it's a masterful creation with unique passive effects designed to make it highly effective against foes with elevated Defence levels. Let's break down its notable features:

 Attack bonusesStab +105Slash +75Crush +0Magic +0Ranged +0
 Defence bonusesStab +0Slash +0Crush +0Magic +0Ranged +0
 Other bonusesStrength +103Ranged +0Magic damage +0Prayer +0Weapon slot table List

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Special Effects of Osmumten's Fang

Osmumten's fang has two passive effects, where it behaves differently at both stages of an attack. That is, when determining if a successful hit has occurred, and then how much damage is applied.

Successful Hit Chance:

1. Inside Tombs of Amascut: The weapon employs standard mechanics with a unique twist. The attack check is performed using the standard mechanics but repeated. If either check succeeds, a successful hit is made. This means the opponent's defence is re-rolled, enhancing accuracy significantly.

2. Outside Tombs of Amascut: Two independent accuracy rolls are made, and if either surpasses the opponent's original defence roll, the attack succeeds. The probability formula is provided for those who crave the intricacies.

Damage Calculation:

The second effect involves using a different formula to determine damage rolls; unlike other weapons that roll between zero and the maximum hit of the player upon a successful hit, the fang will instead always deal between 15% and 85% of the maximum hit upon a successful hit, except when making use of the weapon's special attack. For example, if the fang's true max hit was 60, it would roll between 9 and 51 instead of 0 and 60 (inclusive) damage upon a successful hit. While this effect does not increase the expected damage per second, it does have the effect of lowering the overall variance of the damage output.

Special Attack - Eviscerate:

1. Special Attack Energy: Consumes 25% of the player's special attack energy.

2. Accuracy Boost: Provides a 50% increase to accuracy for the next hit.

3. Damage Rolls: Utilizes the fang's true max hit when determining damage rolls, offering a broader damage range.

4. Animation Note: Despite using the brine sabre special attack animation, Osmumten's Fang always rolls against the opponent's stab defence, even if the attack style is set to slash.


As you wield Osmumten's Fang, you become part of an ancient legacy, channeling the strength and precision of Pharaoh Osmumten himself. This weapon, with its unique mechanics and formidable stats, is a companion for adventurers seeking to conquer the challenges of OSRS. May your battles be victorious, and may Osmumten's Fang be the key to your triumph in the world of Gielinor.

The journey through OSRS is a tapestry woven with stories of legendary weapons and heroic deeds. As you embrace the power of Osmumten's Fang, remember that each encounter, each victory, adds a chapter to your own story. Join the ranks of OSRS adventurers, and may your path be illuminated by the radiant glow of Osmumten's Fang. Happy adventuring!