OSRS Raids Guide

By | May 22nd, 2019 | Categories: RuneScape

Instanced raiding was never really a thing in Oldschool Runescape until the addition of Chambers of Xeric and the Theatre of Blood. Unlike other MMORPG’s, there is no linear progression as a wide variety of combat levels may attempt each one, although completing them is another story. Within this OSRS Raids Guide, you will get the gist on how they work and how to get started.

What do I need to know about Chambers of Xeric?

The Chambers of Xeric came out as an expansion to the already new continent of Zeah and is considered the first instanced raid in the game. Reminiscent to Dungeoneering from Runescape 3, this raid required a combination of combat and skilling to progress through the rooms and there is an element of randomization to every raid instance.

To even consider stepping into this raid, groups will want you to at least have 100 combat with high Hitpoints, 55 Farming, and 78 Herblore. A big part of doing raids is the ability to make various potions using Farming and Herblore, particularly for Xeric’s Aid. Other skills like Hunter.

Bosses with Great Olm

The following bosses may be encountered with Great Olm always being at the end:

  • Vasa Nistirio – He turns from an animated pile of rocks to his final form. The main thing to be concerned about is his ability to teleport party members to various parts of the room.
  • Tekton – This boss cannot be touched by either range or magic, which means players will have to stomp him with melee. It is recommended to use Dragon Warhammer special attacks to make the fight slightly easier.
  • Vespula – This abyssal creature attacks with range and has hard-hitting poison, so using a Serpentine helmet could be useful.
  • Vanguard – These three mysterious creatures each are only attackable with either Range, Magic or Melee. Damage must be spread equally to kill them, so coordination is key.
  • Ice Demon – This has a very high magic level and can deal nasty Ice Burst spells to players. Players will first need to dispel the ice storm to advance in the fight.
  • Muttadiles – This crocodile-mutant thing attacks with both range and melee. The usual strategy is to stay within melee distance with protect prayers and attack it with range.
  • The Great Olm – A giant white salamander that guards the chest at the end of the raid.

For more RuneScape, check this out: OSRS Barrows Guide

Idea Gear Setup

  • Full void with all three helmets.
  • Zamorakian Hasta or Abyssal Tentacle for a melee weapon.
  • Toxic Blowpipe or Twisted bow for the ranged weapon.
  • Trident of the Swamp for Magic attack
  • Amulet of Torture or Fury
  • Ring of Suffering
  • Avernic or Dragon defender
  • Primordial Boots or Dragon Boots
  • Ava’s Assembler

Defeating the Great Olm

There are three phases that Great Olm rotates, which dictates which part of the body the raid group can attack. The Dragon Warhammer special attack may be used on each target body part to reduce is stats and does not apply to other body parts.

During the first phase, he attacks with rotations of his special attacks, including the AoE Crystal Burst, bolts of lightning and teleports the players around the chamber. The hand that is clenched cannot be attacked, so go for the other.

The second phase will be similar to phase one, although one of the other hands may be clenched and unable to be attacked. If the left hand is clenched, the special attacks from the first phase will not be performed.

Both hands will be attackable in the third phase, in which the must be downed at the same time. He will teleport players around the room, dealing damage, and will then heal the left hand. This phase will need careful coordination within the party.

The final phase will just be against Olm’s head and he will be using all of the attacks in his arsenal. The main thing to watch out for is the falling crystals that damage players if they don’t move out of the day. The party should focus on DPS to get him down before anyone gets killed (which would affect your points).

Making Money from Chambers of Xeric

While expensive drops are quite rare, resource drops in the chest can result in over 1 Million gold per hour if done on a consistent basis. You are pretty much set if you receive a Twisted Bow (currently 1.1 billion gold) or the Dragon Hunter Crossbow (currently over 100 million gold). The chance to receive better drops is influenced by having more points at the end of the raid.

What do I need to know about the Theatre of Blood?

The Theatre of Blood has the hardest PvM content in the game, although it is completely linear unlike the Chambers of Xeric. It was created in June of 2018 in order to revive the otherwise dead content of Meiyerditch. There are six bosses in total and each one is extremely difficult with their own peculiarities.

Just like in the first raid, supply drops are common rewards at the end of the run, although usually in lower quantities. The main attraction is its rare drops, all of which are still traded at relatively high prices. The big-ticket items include the Syche of Vitur (which is over 1.3 billion gold), the Ghrazi rapier (over 180 million gold) and the Sanguinesti Staff (over 140 million gold).

The gear choice for the Theatre of Blood is simply to bring best-in-slot gear in the game for each attack style, and every member should hybrid/tribrid. The inclusion of blood barrage or the Sanguinesti Staff for self-healing is also vital. Although it’s extremely expensive, Twisted Bows are commonly brought by most raid members.


  • Xarpus – An otherworldly bat creature that can heal himself and deal with poison damage. Players will constantly need to avoid poisoned tiles while dealing damage to the boss.
  • The Maiden of Sugadinti – The maiden will throw blood spots that need to be dodged and occasional magic attacks at the tank. At multiple points of the fight, she will also spawn healers that need to be killed immediately.
  • Pestilent Bloat – While this abomination is slow, being attacked by its flies can kill a raid party very quickly. Falling corpses that stun and damage players can also ruin a run.
  • Nylocas Vasilias – This fight consists of killing various waves of creatures before being able to hit the boss. Multiple attack styles will be needed.
  • Sotetseg – A corrupted dark beast with a complex tile puzzle that raid parties need to solve in order to kill him.
  • Verzik Vitur – The final boss of ToB and one of the most difficult in the game. She turns into a spider-like creature and has multiple phases.

Defeating Verzik Vitur

This fight is notoriously difficult and consists of three phases. Players will obtain the Dawnbringer from the skeleton corpse at the entrance, which will be used later on.

During the first phase, players must mitigate damage by hiding behind pillars during her attacks. The Dawnbringer is the best weapon to use as any other weapon has capped damage and isn’t viable. She will then fly off and come back to body slam players, so be mindful about avoiding it. Nycolas may also be spawned to heal her and should be targeted before they heal her.

In the second phase, she will shoot blue projectiles that will travel around the room and players need to avoid. When she does her attack rotation, she will body slam players when they try to melee her. This can be avoided by stepping back between hits. If she spawns a purple Nycolas, attack it with a poisoned weapon (like the blowpipe) in order to deal poison damage to her.

In the third phase, she will reveal her spider-like appearance and the fight gets more treacherous. She shoots barbs and does a blue magic attack, so switch prayers accordingly. She also has a powerful AoE attack, in which there is a small safe spot where raid members need to gather if they don’t want to die. Also, watch out for her web attacks that bind players and do periodic damage.


Both raids have so far been amongst the hardest and most engaging content in the game, which is why it also has the best rewards. Hopefully, this OSRS Raids Guide will inspire you to gear up and get a group together to take on these challenging bosses.

For more RuneScape, check this out: OSRS Melee Armor for P2P and F2P

One Comment

  1. Globoseller June 3, 2019 at 1:18 pm - Reply

    Nice content

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