Chambers of Xeric: Challenge Mode
Endgame · Melee, Ranged, Magic · raid · recommended 120+ combat
Why Ironmen kill it
Same uniques as the normal raid, plus Metamorphic dust.
Shares its drop list with Chambers of Xeric.
Requirements to access
Skills
None
Quests
None
- At least one Chambers of Xeric completion
- Group 'challenge' mode with time targets
Hardcore Ironman
Safe death for Hardcores.
Drops worth chasing
| Drop | What it's for | Rate | 90% chance by |
|---|---|---|---|
| Dragon hunter crossbowGear | Dragon hunter crossbow Best weapon against dragons, including Vorkath. | 4 in 60 uniques | — |
| Ancestral hatGear | Makes Ancestral robes Best-in-slot magic armour. | 4 in 60 uniques | — |
| Ancestral robe topGear | Makes Ancestral robes Best-in-slot magic armour. | 4 in 60 uniques | — |
| Ancestral robe bottomGear | Makes Ancestral robes Best-in-slot magic armour. | 4 in 60 uniques | — |
| Dragon clawsGear | Dragon claws Four-hit special attack for big burst damage. | 3 in 60 uniques | — |
| Elder maulGear | Elder maul Heavy crush weapon with a Defence-draining special. | 2 in 60 uniques | — |
| Twisted bowGear | Twisted bow The strongest weapon against high-Magic bosses. | 2 in 60 uniques | — |
| Dexterous prayer scrollUpgrade | Unlocks Rigour. | 14 in 60 uniques | — |
| Arcane prayer scrollUpgrade | Unlocks Augury. | 14 in 60 uniques | — |
| Twisted bucklerUpgrade | Strong ranged off-hand. | 4 in 60 uniques | — |
| Kodai insigniaUpgrade | Makes the Kodai wand. | 2 in 60 uniques | — |
| OlmletPet | The boss pet. | 1/53 per kill | 121 kills |
“90% chance by” is how many kills (or chests) give a 90% chance of having the drop; most players get it sooner, and some much later. Raid rates are a share of unique drops, which depend on points and team size. See every upgrade in order on the Ironman gear progression page.
Top kill counts
Are you ready?
Look yourself up; the planner lists which bosses your stats and quests unlock.
Other endgame bosses
Requirements and drop rates (rates fetched 2026-10-01) checked against the Old School RuneScape Wiki (CC BY-NC-SA 3.0). Requirements are game facts; the descriptions here are our own.