Yama, the Master of Pacts, is one of Old School RuneScape’s most challenging duo-focused bosses, released on May 14, 2025. Located in the Chasm of Fire, this demonic entity demands precise mechanics, high-level gear, and teamwork to defeat. This guide covers everything you need to know, from requirements and gear setups to detailed fight mechanics and loot.
Requirements
To access Yama, players must first complete a master-level quest and have solid combat stats. These are the minimum and recommended requirements:
- Completion of “A Kingdom Divided” (Master-level quest)
- Recommended stats:
- 90+ Combat (Melee, Ranged, Magic)
- 73 or 83 Agility for Chasm shortcuts
- Poison immunity: Sanfew serums or Antidote++
Getting to Yama
Reaching Yama involves navigating the Chasm of Fire through a few shortcut routes. Here are the most efficient methods:
Fast Travel Options:
- Fairy Ring DJR → Run northwest
- Kharedst’s Memoirs (“History and Hearsay”)
- Battlefront Teleport → Run west
- Skills Necklace (Farming Guild) → Run southeast
Agility Shortcuts:
Use these shortcuts to skip dangerous demons and reach the Voice of Yama faster:
- 73 Agility: Jump gaps and use gibbet
- 83 Agility: Slide chain directly to Voice of Yama
Speak to the Voice of Yama and use “Travel” or “Join” to enter the instance.
Recommended Gear
Choosing the right setup is essential for minimizing damage and maximizing DPS. Here’s what you should equip based on your combat style:
Best-in-Slot (BiS) Gear
| Style | Weapon | Armor | Spec Attack |
|---|---|---|---|
| Magic | Purging Staff / Tumeken’s Shadow | Ancestral | Dark Demonbane + Mark of Darkness |
| Melee | Emberlight / Burning Claws | Torva | Bandos Godsword / Elder Maul |
Tumeken’s Shadow is useful in Phase 3 due to Yama’s Magic Defence boost to +81.
Inventory Setup
Bring these items to handle poison, prayer drain, and emergency healing:
- 2–3 Sanfew Serums / Antidote++
- Anglerfish/Saradomin Brews
- Prayer Potions / Super Restores
- Teleport (House / Portal Nexus)
- Special Weapons (DWH, BGS, Purging Staff)
Fight Mechanics Breakdown
Yama has three main phases and two Judge of Yama intermissions. Here’s how each part of the battle unfolds:
Phase 1 (100% → 66.6%)
This is the introductory phase that introduces glyphs, combat style changes, and minor hazards.
- Combat: Magic or Ranged based on glyph color
- Glyphs:
- Fire Glyph (orange): Protect from Magic
- Shadow Glyph (purple): Protect from Ranged
- Only one player needs to stand on the glyph in duo.
- Special Attacks:
- Standing early disables glyphs temporarily (don’t pre-step)
- Shadow glyph boosts SGS/Eldritch staff specs
- Fire glyph boosts Volatile staff specs
Arena Hazards:
These environmental mechanics occur during Phase 1 and must be managed carefully:
- Shadow Waves: Dodge or take prayer-off damage
- Fire Streaks: Run perpendicular to avoid being rooted
- Void Flares: Destroy before charge fills; otherwise, take 50+ dmg
- Use Purging Staff to 2-tick flares with Demonbane spells
Judge of Yama Intermission
Twice per fight, Yama teleports players to a separate area to fight the Judge. Here’s how to handle that phase:
- Agility Course: Jump across stones while dodging fireballs
- Boss: 400 HP, dual prayers (starts with Melee + Ranged)
- Attack with Magic + Melee to bypass protection
- Standing under Judge causes fireball self-damage
- Duo: Shared HP pool across both instances
Phase 2 (66.6% → 33.3%)
In this phase, hazards intensify, and new special attacks are introduced. Positioning and movement become crucial.
- New Attacks:
- Meteor Strike: Run 2+ tiles or take 80–121 dmg
- Shadow Stomp: Up to 60 damage + prayer drain
- Hazards Intensify:
- Double Shadow Waves
- More Fire Streaks
- Glyph use same as Phase 1, but effects more punishing
Phase 3 (33.3% → 0%) – Enraged Phase
The final phase removes glyph protection and introduces rapid-fire mechanics and stat boosts.
- Glyphs Disabled
- Void Flares spawn rapidly:
- Start with 71 HP; Purging Staff + Mark of Darkness can 1-shot
- Up to 3 flares spawn after 8 total
- Triple Fireball (Hourglass Pattern):
- Spawns vertically, diagonally, vertically
- Side fireballs create smoke clouds; move perpendicular
- Increased Defence:
- Magic Defence: –30 → +81
- Melee Prayer Piercing: hits up to 22 through prayer
Advanced DPS Technique: Donofly Method
This expert technique prevents Yama from using melee, thus avoiding extra void flares. It involves tick-perfect movement and positioning.
Cycle:
- Move to Tile 1 → click Yama when his hand raises
- Move to Tile 2 → attack
- Move to Tile 3 → attack
- Walk to Tile 4 → attack
- Move to Tile 5 → attack
- Return to Tile 1 and repeat
Requires tick-perfect timing. Duo preferred. If phase lasts too long, flares will spawn regardless.
Drops & Rewards
Defeating Yama offers a mix of rare equipment, cosmetic items, and high-tier consumables. Here’s what to expect:
Unique Drops
| Item | Drop Rate | GE Price |
|---|---|---|
| Oathplate Helm | 1/600 | ~12.6M |
| Oathplate Chest | 1/600 | ~37.8M |
| Oathplate Legs | 1/600 | ~25.2M |
| Soulflame Horn | 1/300 | ~12.5M |
| Yami Pet | 1/2,500 | Untradeable |
| Dossier | 1/20.17 | Unlocks contracts |
| Forgotten Lockbox | 1/31.84 | Random rare loot |
Contract System (From May 23, 2025)
Contracts allow players to scale difficulty for better rewards. They’re acquired from dossiers and unlock new challenge variants.
| Contract Type | Reward |
|---|---|
| Catalyst Acquisition | Aether Catalyst x2000 |
| Oathplate Acquisition | Oathplate Piece x1 |
| Soulflame Contract | Soulflame Horn x1 |
| Purifying Sigil Contracts | Top, Bottom, Left, Right, Middle |
| Familiar Acquisition | Higher Yami Drop Rate |
Contracts increase fight difficulty (like DT2 Awakened bosses) and are solo-only.
Fun Trivia & Lore
Yama comes with some hilarious and dark OSRS-style flavor. Here are a few fun facts:
- Yama loves pineapple pizza (and mocks burnt ones).
- Deaths = “Soul Debt” years on scoreboard.
- Global Best Time: 2:23.40
- Official Worlds: W325 (UK), W394 (US-East), W343 (Germany), W339 (US-West)
Final Tips
These practical suggestions will help you succeed more consistently and avoid common errors:
- Duo Recommended for safer mechanics and glyph coverage
- Learn the Donofly rotation if you’re confident in melee control
- Focus on Void Flare clearing in later phases
- Prepare for contract fights with dossiers post-May 23
Good luck, adventurer. May Yama’s domain become your farm spot. Play Now
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