OSRS Raids: The Complete Guide to Mastering Chambers of Xeric and Theatre of Blood in 2026

Raids in Old School RuneScape represent the pinnacle of PvM content, high-stakes, team-based boss encounters that demand mechanical skill, gear knowledge, and coordination. Whether you’re chasing a Twisted Bow from Chambers of Xeric, grinding for a Scythe of Vitur in Theatre of Blood, or customizing your challenge level in Tombs of Amascut, OSRS raids offer some of the most rewarding (and punishing) content in the game.

This guide breaks down everything you need to know about RuneScape raids in 2026, from entry-level requirements to advanced optimization techniques. You’ll learn the best gear setups, boss strategies, reward tables, and how to avoid the mistakes that wipe teams. Let’s get started.

What Are Raids in Old School RuneScape?

Raids are instanced, group-based PvM challenges introduced to OSRS in 2017 with Chambers of Xeric. Unlike traditional bosses, raids consist of multiple rooms or encounters that must be cleared sequentially, culminating in a final boss fight. Teams share loot based on contribution points, and rewards include some of the game’s most powerful weapons and armor.

Currently, OSRS features three distinct raids: Chambers of Xeric (CoX), Theatre of Blood (ToB), and Tombs of Amascut (ToA). Each offers unique mechanics, difficulty tiers, and exclusive drop tables.

Understanding Raid Mechanics and Objectives

Raids use a points-based reward system. Players earn points by completing rooms, dealing damage, and healing teammates. At the end of a raid, each participant rolls for loot based on their point contribution, higher points mean better odds at unique drops.

Most raids scale in difficulty based on team size. Smaller teams face easier encounters but earn fewer total points. Solo raids are possible in all three types but demand significant skill and gear investment.

Death mechanics vary by raid. In Chambers of Xeric, dying respawns you inside the raid with stat penalties. Theatre of Blood uses a shared death pool, too many deaths and the entire team wipes. Tombs of Amascut employs a lives system tied to your invocation settings.

Why Raids Are Worth Your Time

The loot. Raids drop some of the most valuable items in OSRS, including the Twisted Bow (1B+ GP), Scythe of Vitur (400M+ GP), and Tumeken’s Shadow (2B+ GP as of early 2026). Even common drops like supply crates and purple chests provide consistent profit.

Beyond GP, raids teach advanced PvM mechanics that transfer to all endgame content. Prayer flicking, gear switching, tick manipulation, and team coordination become second nature after a few dozen runs.

Raids also offer prestigious cosmetics and collection log completions. Pets from each raid are rare and highly sought after, with Theatre of Blood’s Lil’ Zik being one of the rarest in the game.

Chambers of Xeric: The First Raid

Chambers of Xeric (often called Cox or Olm) takes place beneath Mount Quidamortem in the Kebos Lowlands. It’s the most accessible raid for newcomers, with a learning curve that rewards practice without being brutally punishing.

Each raid run is procedurally generated, meaning room layouts vary. You’ll navigate puzzle rooms, combat challenges, and resource-gathering sections before facing the final boss, Great Olm.

Recommended Stats and Gear for Chambers of Xeric

Minimum stats for learning runs:

• 90+ Ranged (critical for most DPS)
• 90+ Magic (for Muttadiles and Mystics)
• 75+ Attack and Strength (melee is situational)
• 77+ Prayer (Rigour is highly recommended)
• 78 Herblore for overload potions (can be boosted)

Budget gear setup:

• Weapon: Blowpipe, Trident of the Swamp, Dragon Warhammer (DWH spec is essential)
• Armor: Black D’hide, Mystic robes, Barrows gloves
• Boots: Blessed D’hide boots or God D’hide boots
• Ring: Ring of Suffering (i) or Archers Ring (i)
• Cape: Ava’s Assembler or God cape

Advanced setup:

• Weapon: Twisted Bow (if you have 1B+ to spend), Dragon Hunter Crossbow, Kodai Wand
• Armor: Ancestral robes, Armadyl armor, Bandos for melee
• Boots: Pegasian, Eternal, or Primordial
• Ring: Ring of Suffering (i) with Recoil effect active

Bring a Dragon Warhammer or Bandos Godsword for defense reduction on Olm’s hand. This drastically speeds up kills and improves point gains.

Navigating the Chambers: Room-by-Room Breakdown

Puzzle rooms (Crabs, Ice Demon, Thieving) award points and resources. Ice Demon requires chopping kindling and burning braziers while avoiding freezing damage. Thieving rooms involve lockpicking chests while dodging poison damage.

Combat rooms vary widely. Muttadiles require switching between ranged and melee as the boss changes aggro. Tekton demands timing and anvil usage to prevent his enraged state. Vasa Nistirio teleports players and fires ranged/magic attacks, punishing poor positioning.

Mystics are magic-based enemies weak to ranged. Focus fire and prayer flick to minimize damage. Vanguards (melee, ranged, magic variants) must be damaged evenly, letting one fall behind in HP triggers a massive defense buff.

Great Olm is the final boss with three phases. He has a left hand (magic or ranged), right hand (melee), and a head. Destroy both hands to progress phases. Players must run head constantly to avoid fatal flames, dodge crystal bombs, and prayer flick correctly. This fight is where most wipes happen during learning runs.

Challenge Mode vs. Regular Mode

Challenge Mode (CM) cranks up enemy stats, adds new mechanics, and removes resources from scavenger rooms. It’s designed for experienced teams seeking higher points and better loot odds.

CM requires near-max combat stats and BiS gear. Twisted Bow becomes almost mandatory for efficient kills. The Metamorphic Dust for changing Olmlet pet colors only drops in CM, making it a collection log requirement.

Regular mode is the standard experience and what 95% of players run. It’s profitable, learnable, and doesn’t demand perfection.

Theatre of Blood: The Ultimate PvM Challenge

Theatre of Blood (ToB) is located in Ver Sinhaza, Morytania, and is widely considered the hardest raid in OSRS. Five boss encounters test prayer flicking, positioning, and team coordination. Unlike CoX’s procedural generation, competitive gaming guides often highlight ToB’s static layout as a crucible for consistent execution.

Each room features a unique boss with punishing mechanics. Deaths consume from a shared pool, and running out means a full team wipe. ToB demands voice communication and practiced rotations.

Preparation and Gear Requirements for Theatre of Blood

You’ll need higher stats than CoX:

• 90+ in all combat styles (Attack, Strength, Ranged, Magic)
• 90+ Defence (reduces incoming damage significantly)
• 77+ Prayer with Piety and Rigour unlocked
• High Herblore for Saradomin Brews and Super Restores

Minimum gear:

• Weapon: Blowpipe, Trident of the Swamp, Abyssal Tentacle
• Armor: Barrows armor (Karil’s, Torag’s, Ahrim’s), Black D’hide
• Cape: Fire Cape or Infernal Cape (significant DPS boost)
• Amulet: Amulet of Fury or Occult Necklace for magic

Advanced gear:

• Weapon: Scythe of Vitur (BiS melee for ToB), Twisted Bow, Sanguinesti Staff
• Armor: Justiciar for tanking Verzik P2, Ancestral robes, Armadyl
• Cape: Infernal Cape is nearly required for serious teams
• Ring: Ring of Suffering (i), Berserker Ring (i)

Scythe of Vitur is the crown jewel of ToB. Its multi-target slash makes it absurdly strong against Verzik and Bloat.

Boss Fight Strategies for Each Room

The Maiden of Sugadinti spawns blood spawns that must be killed quickly. Freeze them with Ice Barrage and focus DPS on Maiden. Nylocas Matomenos heal her if left alive, prioritize them.

Pestilent Bloat walks a fixed path around the room. Players must dodge his movement and attack during his vulnerable phase (when he falls). Bring a melee weapon with slash bonus.

Nylocas Vasilias is a three-phase fight with constantly spawning Nylocas. The boss cycles through melee, ranged, and magic forms, match its combat style to deal damage. Pillar runners must kite and manage spawns while DPS focuses the boss.

Sotetseg involves two overworld phases and a maze phase. One player must navigate the red maze and guide teammates. Failure to follow the path results in massive damage. Prayer flick melee and magic during overworld phases.

Xarpus has a poison phase (destroy exhumed remains to free the boss), a screech phase (turn away to avoid damage), and a final DPS burn. Positioning is critical, stand too close and you’ll take heavy damage.

Verzik Vitur is the final boss with three phases. P1 requires Dawnbringer or ranged attacks on pillars. P2 spawns Nylocas and requires tanking her melee attacks. P3 is pure DPS with tornados, webs, and bouncing attacks. Teams often wipe here due to poor positioning or running out of supplies.

Hard Mode Theatre of Blood Tips

Hard Mode (HM ToB) adds devastating new mechanics to every boss. Maiden spawns blood reavers that teleport players. Bloat’s stomp range increases. Nylocas boss splits into multiple forms. Xarpus heals rapidly. Verzik’s P2 has additional attacks and P3 includes green ball mechanics.

HM requires near-perfect execution and max gear. The Sanguine Twisted Bow and Holy Sanguinesti Staff are HM-exclusive transmogs. Completion count is a prestige flex, most players have fewer than 10 HM completions.

Learners should master regular ToB extensively before attempting HM. Even experienced raiders struggle with the added complexity.

Tombs of Amascut: The Desert Raid

Tombs of Amascut (ToA), released in August 2022, is located in Sophanem. It’s the most customizable raid, featuring an Invocation System that allows players to scale difficulty and rewards dynamically.

ToA strikes a balance between CoX’s accessibility and ToB’s mechanical intensity. It’s solo-friendly, making it the preferred choice for players without consistent teams.

Entry Mode vs. Normal Mode vs. Expert Mode

Entry Mode (0 Invocation Level) is a tutorial version with no unique drops. It teaches mechanics without punishment, making it perfect for learning.

Normal Mode begins at Invocation Level 50+. Unique drops become possible, and mechanics gain teeth. Most players farm Normal Mode between 150-200 Invocation for a balance of difficulty and efficiency.

Expert Mode starts at 300+ Invocation. This unlocks the Masori Armor upgrade kits and increases drop rates. Expert Mode completions award the purple Tumeken’s Guardian pet recolor.

Invocation 600 represents the absolute ceiling and is brutally difficult even for elite raiders.

Invocation System and Raid Level Customization

Invocations are modifiers that increase difficulty in exchange for better loot odds. Examples include:

• Walk for It: Prevents running
• Insanity: All prayers disabled
• On a Diet: No food or potions
• Penetration: Enemies ignore prayer

Players mix and match invocations to hit their target level. A common 150 setup might include Lively Larvae, Medic., and Acceleration for manageable difficulty spikes.

Higher invocation means better unique drop rates, more purple chest rewards, and increased points per raid. The system lets players push their limits without requiring a static team or fixed difficulty.

Essential Raid Supplies and Inventory Setup

Inventory management separates efficient raiders from those constantly banking. Each raid has specific supply requirements, but core principles apply universally.

Best Weapons and Armor for Each Raid

Chambers of Xeric:

• Primary DPS: Twisted Bow (ranged), Blowpipe (general use), Dragon Hunter Crossbow (Olm)
• Magic: Kodai Wand or Trident of the Swamp
• Melee: Dragon Warhammer for specs, Abyssal Tentacle for Tekton

Theatre of Blood:

• Primary DPS: Scythe of Vitur (melee), Twisted Bow (Verzik P1/P3)
• Magic: Sanguinesti Staff (healing is invaluable), Shadow Barrage for freezes
• Spec Weapons: Dragon Claws, Crystal Halberd for Verzik webs

Tombs of Amascut:

• Primary DPS: Tumeken’s Shadow (BiS magic for ToA), Fang of Zaros (melee), Bow of Faerdhinen
• Ranged: Twisted Bow for Zebak and Kephri, Blowpipe for general use
• Spec Weapons: Dragon Claws, Bone Dagger for poison immunity

Armor choice depends on budget. Ancestral robes, Armadyl, and Bandos form the BiS trio. Budget alternatives include Mystic, Black D’hide, and Barrows armor.

Potions, Food, and Consumables Guide

Chambers of Xeric:

Bring minimal supplies since you’ll brew overloads inside. Pack:

• 2-3 Super Restores
• 1 Stamina Potion
• 2-3 pieces of high-tier food (Manta Rays or Anglerfish)
• Saradomin Brews (2-3)

CoX provides overloads via the Brewing Vat using resources gathered during the raid.

Theatre of Blood:

No food or potions are allowed in most rooms, you rely on looted supplies. Bring:

• Nothing in inventory except gear switches and runes

Loot Saradomin Brews, Super Restores, and Purple Sweets from supply crates. Ration carefully.

Tombs of Amascut:

Full supply control. Pack:

• 4-6 Saradomin Brews
• 3-4 Super Restores
• 1-2 Stamina Potions
• 4-6 pieces of food
• Ambrosia (ToA-exclusive healing item)

Adjust based on invocation level. Higher invocations demand more supplies or flawless execution to compensate.

Team Composition and Communication

Raid success hinges on team synergy. Even BiS gear won’t carry a team with poor communication or role confusion.

Ideal Team Sizes and Roles

Chambers of Xeric scales from 1-100 players but performs best with 3-5 players. Smaller teams mean easier Olm mechanics but fewer total points. Common roles:

• Runner: Handles Olm head, calls movements
• Mage Hand: Attacks Olm’s left hand (magic)
• Melee Hand: Attacks Olm’s right hand (melee)

Casual teams often skip rigid roles and rotate responsibilities.

Theatre of Blood is designed for 3-5 players (4 is optimal). Roles include:

• Tank: Soaks Maiden blood splats, tanks Verzik P2
• Freezer: Ice Barrages Nylocas and manages spawns
• DPS: Focuses boss damage
• Pillar Runner: Manages Nylocas Vasilias pillars

Voice chat (Discord) is essentially mandatory for ToB. Callouts for Sotetseg maze, Verzik web timings, and Nylocas colors prevent wipes.

Tombs of Amascut is extremely solo-friendly. Most players run it alone to maximize loot share. Group ToA (2-3 players) is viable but less common due to loot dilution.

Solo Raiding vs. Group Raiding

Solo raiding offers 100% loot share but demands higher skill. You handle all mechanics, manage supplies perfectly, and can’t rely on teammates for backup.

CoX solos are popular for Twisted Bow hunting. The difficulty curve is moderate, experienced players can complete 15-20 minute runs consistently. Solo Olm requires mastering the 4:1 or 1:1 methods (attack cycles between Olm’s attacks).

ToB solos are brutal. Only elite PvMers attempt them, often taking 40+ minutes per run. The loot is identical to team runs, so most players skip solo ToB entirely.

ToA solos are the meta. The invocation system lets players tailor difficulty, and loot isn’t shared. Many game walkthroughs recommend ToA as the ideal solo raid for consistent profit.

Group raiding is faster, more forgiving, and social. Join clan discords or use the OSRS raid finder plugin (Runelite’s “We Do Raids” plugin) to find teams.

Raid Rewards and Unique Drops

Loot is the lifeblood of raiding. Understanding drop rates and mechanics helps set realistic expectations and calculate profit per hour.

Chambers of Xeric Loot Table

CoX uses a points-to-loot conversion. At raid completion, you roll for a unique drop based on total points. Solo raids typically net 25k-35k points per run.

Unique drops:

• Twisted Bow: ~1/800 in solo raids (1B+ GP)
• Dragon Hunter Crossbow: ~1/800 (30M GP)
• Kodai Insignia: ~1/800 (60M GP)
• Ancestral Hat/Robe Top/Robe Bottom: ~1/800 each (50-80M GP each)
• Dragon Claws: ~1/800 (90M GP)
• Dinh’s Bulwark: ~1/800 (5M GP)
• Dexterous/Arcane Prayer Scroll: ~1/800 each (40M/10M GP)

Common loot includes supply crates with potions, herbs, and seeds (50-100k GP average).

Pet chance is roughly 1/53 per completion (scales with points).

Theatre of Blood Loot Table

ToB rewards are team-shared. Each player rolls individually based on contribution.

Unique drops:

• Scythe of Vitur: ~1/400 in standard teams (400M GP as 3 pieces: blade, gem, hilt)
• Ghrazi Rapier: ~1/400 (120M GP)
• Sanguinesti Staff: ~1/400 (80M GP as uncharged)
• Justiciar Armor (Faceguard/Chestguard/Legguards): ~1/400 each (30-50M GP total set)
• Avernic Defender Hilt: ~1/400 (60M GP)

ToB also drops supply crates but at lower value than CoX (20-40k GP).

Lil’ Zik pet: ~1/650 per completion.

Tombs of Amascut Loot Table

ToA’s loot scales directly with invocation level. Higher invocations = better unique odds.

Unique drops:

• Tumeken’s Shadow: ~1/800 at 150 invo, ~1/200 at 500+ invo (2B+ GP)
• Lightbearer Ring: ~1/400 at 150 invo (80M GP)
• Elidinis’ Ward: ~1/400 at 150 invo (25M GP)
• Masori Armor (Mask/Body/Chaps): ~1/400 at 150 invo each (100M+ GP full set)
• Fang of Zaros: ~1/200 at 150 invo (150M GP)

ToA also introduces thread of elidinis (40M GP) for upgrading Masori to tier-80.

Pet chance improves dramatically with invocation level. 300+ invo gives roughly 1/200 odds.

Common Mistakes to Avoid in OSRS Raids

Even experienced players fall into bad habits. Here’s what to avoid:

Under-preparing supplies. Running out of prayer or food mid-raid kills momentum. Always bring 10-20% more than you think you need while learning.

Ignoring team callouts. ToB is unforgiving if you miss a Sotetseg maze instruction or Verzik web timing. Mute Discord during a raid and you’re a liability.

Poor positioning. Standing in fire, failing to dodge Bloat’s walk path, or clumping during AoE attacks causes unnecessary deaths. Spatial awareness matters more than DPS.

Not using spec weapons. Saving Dragon Warhammer or BGS specs “for later” wastes DPS. Spec on cooldown during appropriate phases (Olm hands, Verzik P2).

Panic eating. Overhealing with Brews tanks your stats. Learn to recognize safe HP thresholds and prayer flick to minimize damage instead of spam-eating.

Bringing the wrong gear. Melee armor at Vasa Nistirio or ranged gear at Tekton wastes inventory space and lowers DPS. Study room-specific weaknesses.

Skipping practice modes. Entry Mode ToA and practice Mode ToB exist for a reason. Ego-rushing into normal modes costs teams time and GP in wasted supplies.

Ignoring RuneScape raids meta shifts. Balance changes happen. The Fang of Zaros received a nerf in late 2023, altering ToA metas. Keep tabs on patch notes or you’ll bring outdated strategies.

Advanced Raiding Techniques and Optimization

Once you’ve got completions under your belt, optimization separates casual raiders from endgame grinders.

Prayer Flicking and Gear Switches

Prayer flicking conserves prayer points by toggling protection prayers on the tick before an attack lands. Lazy flicking (1-tick before attack) is easiest and sufficient for most encounters. One-tick flicking (activate/deactivate every tick) maintains infinite prayer but demands intense focus.

CoX benefits from lazy flicking during Olm and Tekton. ToB demands constant flicking during Maiden and Verzik P3. ToA’s invocations can disable prayer entirely, forcing gear-based mitigation.

Gear switches improve DPS by matching combat styles to enemy weaknesses. Common switches:

• 4-way switch: Helm, body, legs, weapon
• 6-way switch: Add boots and gloves
• 8+ way switch: Add cape, amulet, ring for maximum DPS

More switches mean faster kills but higher risk of misclicks. Start with 4-way and gradually add complexity.

Speed Running and Point Optimization

Speed running raids requires tick-perfect execution and team coordination. CoX records sit below 15 minutes for solo, under 12 minutes for teams. ToB world records are sub-13 minutes. ToA has been cleared in under 7 minutes at low invocations.

Point optimization in CoX involves scouting raids for favorable layouts (avoiding Vanguards, prioritizing Muttadiles). Use scouting bots or plugins to skip bad layouts and maximize points per hour.

ToA optimization focuses on invocation selection. Certain combinations (like Insanity + Penetration) drastically spike difficulty for minimal point gains. Efficient raiders build invocation presets targeting 150, 200, and 300 levels with balanced modifiers.

Advanced techniques like tick eating (eating and brewing on the same tick) extend survivability during intense DPS phases. Weapon spec stacking (coordinating multiple DWH or BGS specs) accelerates kills in team settings.

Many high-level raiders reference gaming guides for emerging strategies, especially after balance patches shift the meta. Staying current with optimal rotations and gear choices keeps profit per hour competitive.

Conclusion

OSRS raids represent the endgame PvM experience, challenging, profitable, and endlessly replayable. Chambers of Xeric offers an accessible introduction with massive loot potential. Theatre of Blood tests mechanical skill and team coordination to the limit. Tombs of Amascut delivers customizable difficulty perfect for solo grinders.

Whether you’re chasing a Twisted Bow, grinding Scythe splits, or pushing 500+ invocation ToA, the learning curve pays dividends. Master prayer flicking, optimize your gear switches, study boss mechanics, and communicate clearly. Mistakes will happen, wipes are part of the process.

Start with Entry Mode to learn mechanics risk-free, then gradually scale difficulty as your confidence grows. Join a raiding clan or discord to find consistent teams and mentors. Track your completion times and loot to measure improvement.

The billion-GP drops are rare, but the journey from first completion to speed-running expert is what makes raiding addictive. Good luck, and may RNGesus bless your purple chests.