Chambers of Xeric/Challenge Mode

The Chambers of Xeric's Challenge Mode is a raid with increased difficulty. Here, players will encounter all possible bosses and rooms within the Chambers, with their combat stats increased. In order to attempt a Challenge Mode raid, party leaders must select the "Challenge Mode" box when forming a party.

Unlike the normal raid, the Challenge Mode's raid is linear and contains three levels of rooms rather than the two normal levels that are randomly generated:


 * Top level: Tekton, Jewelled Crabs, scavenger beasts, ice demon, lizardman shamans, resource room
 * Middle level: The Vanguard, thieving room, scavenger beasts, Vespula, resource room, tightrope room
 * Lower level: Guardians, Vasa Nistirio, scavenger beasts, Skeletal mystics, muttadiles, resource room

Rewards
While the loot players may receive from defeating the great olm in Challenge Mode is the same as that of a normal mode raid, the points player will earn throughout the raid is much higher than normal. In addition, completion count for the Chambers of Xeric's Challenge Mode is counted separately from the normal raid.

Players who complete the Challenge Mode raid within a set amount of time will have a chance of receiving metamorphic dust, which can be used on an olmlet to allow it to metamorphose into smaller versions of Tekton, Vespula, the Vanguard, muttadile or Vasa Nistirio.

The time required to have a chance of receiving metamorphic dust are as follows:

In addition, completing a certain amount of Challenge Mode raids will grant players certain capes by speaking to Captain Rimor by the Chamber's entrance. The overall designs of the capes will have more elements added to them as players continue to complete more Challenge Mode raids.