OSRS Yama, the Master of Pacts Introduction

Old School RuneScape (OSRS) has introduced a formidable new endgame boss: Yama, the Master of Pacts. Released on May 14, 2025, Yama resides deep within the Chasm of Fire in Great Kourend. This encounter is designed for duo play but can be attempted solo for an added challenge.

Requirements & Recommended

Completing the OSRS quest "A Kingdom Divided" to access the Chasm of Fire.

90+ in Melee and Magic.

70+ Prayer (for Piety, Rigour, or Augury).

73+ Agility for shortcut access; 83+ for the fastest descent to Yama's lair.

Affordable for high-tier gear such as Torva and Ancestral.

Use Demonbane weapons: Emberlight and purging staff (While Guthix Sleeps quest completion is required).

How to Get There

Yama is located at the bottom of the Chasm of Fire in the Shayzien region of Great Kourend.

Fairy Ring: Use code DJR to arrive southeast of the Chasm.

Kharedst's Memoirs: Teleport to "History and Hearsay" to reach the Graveyard of Heroes, then head northwest.

Agility Shortcuts: Level 83 - Slide down the chain near the entrance for direct access. Level 73 - Utilize ledges and gaps to navigate to the bottom.

Upon you face Yama, speak to it to sign a pact and initiate the encounter.

The Fight

Yama uses all three combat styles: Melee, Ranged, and Magic. The battle comprises multiple phases, each introducing unique mechanics:

Phase 1: Glyph Mechanics

Yama signals attacks with visual cues:

Purple Smoke: Step on the black glyph.

Ring of Flames: Step on the orange glyph.

Mismatched glyphs result in significant damage.

Intermediary Phase: Judge of Yama

At ~60% health, players will be teleported to face the Judge of Yama.

Navigate an agility course while avoiding fireballs.

Alternate between melee and magic attacks to defeat the Judge.

Phase 2: Enhanced Mechanics

Yama introduces a new mechanic:

Upon uttering 'Veni estella infernus', the targeted player must stand on an orange glyph to avoid a one-hit attack.

Continues using glyph-based attacks from Phase 1.

Intermediary Phase 2: Judge Revisited

At ~30% health, players face the Judge of Yama again with identical mechanics.

Phase 3: Void Flares

Yama summons void flares that detonate after 10 seconds, healing him and damaging players.

Use the Purging Staff's special attack to destroy flares instantly.

Unique drops:

Defeating Yama offers a chance at exclusive and valuable loot:

Oathplate Armour Set: A sidegrade to Torva with +38 Slash Accuracy but -6 Melee Strength.

Soulflame Horn: A team-oriented special attack weapon enhancing melee accuracy for both players.

Purging Staff: Essential for destroying void flares in Phase 3.

Yama's Pet: A miniature version of Yama.

Cosmic Catalysts & Diabolic Worms: Items enhancing skilling activities.

Yama presents one of OSRS's most challenging PvM encounters, demanding precise mechanics and coordination. Whether you seek to test your skills or earn exclusive rewards, facing the Master of Pacts is a worthy endeavor. If you don't have OSRS gold for better gear, you can visit our gold page to purchase. Good luck!

The RSBee Team