Chambers of Xeric's

### Introduction:

This is our introduction to the chambers, This is normally your first raid you will do on dramen. This is a indept guide on what to expect!

Gear requirement / stat requirement:

I would recommend atleast base 90's for raiding.

### Gear:

BIS Mage weapon: Twisted staff > Toxic trident > trident

BIS Melee weapon:  DHL>VLS>Tentacle whip>Whip

BIS Range weapon: Twisted bow > Twisted crossbow > Cerb bp > vorkath crossbow > bp > rcb

Note Since this fight is simply how well you can run the head; feel free to add more switches / less switches depending on your skill level. The only damage you will take is from incorrectly rotating the head / portals.

### How to get to raids:

Open teleports by either clicking on the teleportation device at home or by clicking under your minimap. Once here find the mini-games tab and click on "Chambers of Xerics"

Make sure you are in a CC with the players you want to raid with (does not matter if you are solo) once you are all at the teleport location; run to the doors and click enter. Note hp scales with players +300 hp per hand (and olm) per extra player.

### The fight:

Now that you understand what gear you should expect to have and how to get here let's talk about the actual fight.

The fight is broken down into 4 phases; the first three phases are simply attacking both of his hands in which he will rotation from one side of the room to the other between the first three phases.

To make this simple I am going to use this graphic

The middle line (middle) are the only things you need to mark

The red side (melee hand) and the blue side (mage hand)

The head will rotate to whichever side has the most amount of players; sit there for a second; and if the players have not switched sides will fire an attack.

### The attacks olm can fire

are as followed:

Normal range attack (this looks like a small green ball) note while you can pray to mitigate SOME of this damage it will still hit you.

Normal Magic attack (big green poof) note hwile you can pray to mitigate SOME of this damage it will still hit you.

Apart from the two normal attacks look out for his special attacks; these are based off of the phase he rises with.

If he rises with the power of flame; his special attack will be a fire wall; in which you must escape the wall of fire before taking damage (this is done with a water spell casted on the wall)

If he rises with the power of acid; his special attack will be a poison trail that follows you and does tick damage (if you sit still or walk back through the trail you've created)

If he rises with the power of crystal; his special attack will be falling crystals onto your head; in which you will have to move every tick to avoid damage

Lastly during any of these phases he can throw an attack that will turn off your prayers; depending on the color of the orb coming at you is what you need to pray. Green = pray range Purple = pray magic Orange = pray melee

His attack cycle is as followed

2 auto-attacks

Crystal Burst

2 auto-attacks

Lightning

2 auto-attacks

Teleport

Loops from above

You can skip all of his auto attacks (and specials) simply by rotation the head as you attack.

You simply tank 1 hit on melee side; and then run to middle; as soon as you start to see his head move towards middle, you move 1 tile back to melee side, by doing this you can skip ALL of olms auto attacks.

As long as the melee hand isn't crippled olm will still do the third attack. Crystal burst into lightning into teleport and repeat.

So start off the fight by running the head and crippling the melee hand so that you can skip these attacks. Once done move over to the mage hand and completely kill it.

Then go back to the melee hand and finish it off (note if you have a BGS / DWH / SWH use 1 spec per phase as this will speed up your kill)

The entire fight is the same as this for three phases

Once you've killed both hands three times over olm will not switch sides; he will simply attack you with just the head.

This is where you swap to range gear and while running the head just range him down the fight is truley this simple!

### Raid speeds:

Solo running: 7-10 minutes

Duo running: 5-9 minutes

Trio running: 5-9 minutes

Quad running: 5-9 minutes

### Important Information

To run with multiple people just remember the head will always turn to wherever the most amount of people are.

Meaning if you are in a duo; your duo can just sit on the melee hand and essentially afk the entire thing while you run the head.

With trios you send 1 person to mage side and 1 person to melee side while the main person runs. Once mage hand is done he will then start running the head with you (as he has to run across to deal damage to the melee claw)

With quads its actually still very simple

You set up one person melee hand; one person mage hand and one person center

The left over person will be running the head

### Drop rate formula:

The drop rate formula for Chambers of Xeric works as follows: The *base rate* to receive a purple is 1/27. In order to be eligible for a drop you need to achieve atleast 100 points in the raid. To find out your drop chance, divide your total accumulated points by *250* if it's a solo or *300* if you are raiding with a group (regardless of size). Once you've done that, subtract the number you get from the *base rate* of 27.

**Example**: I'm raiding solo and end on 4,000 points. 4000/250 = 16. 27-16 = 11. I now have a 1 in 11 chance to roll a purple. But what if the well of goodwill is active (25% bonus raid drop rates), I have an Olmlet pet (2% drop rate boost) or have other boosts? Simple! Start by subtracting the percentages from 1. In the following example, the raids WOGW is active (25%) & I have an Olmlet pet (2%). 1-0.25-0.02 = 0.73. Now we multiply this with our initial drop chance, 1 in 11. 0.73\*11 = 8,03. My chance at receiving a purple is 1 in 8,03, or 12,45%!

### Item weights:

From Chambers of Xeric itself, there are plenty of rare items you can get. Above you were taught how to calculate your chance at receiving a purple from the chest. The various items are separated into two tables: *rare* & *very rare*. On the rare table, you can find the following items:

* Arcane & Dexterous prayer scroll (3)
* Twisted buckler (2)
* Dinh's bulwark (2)
* Ancestral robes (1)
* Kodai insignia (1)
* Elder maul (1)
* Dragon hunter crossbow (1)

The number you see displayed next to the item is how they are weighted (as in how common they are in comparision to each other).

Every time you roll a purple, you have a *1 in 3* chance at hitting the very rare table instead. That table consists of the following items:

* Dragon claws (3)
* Twisted staff (3)
* Twisted crossbow (2)
* Twisted bow (1)

I hope this information will help you to better understand how the drop system in Chambers of Xeric works!