There are six ascension keystones, dropped by the slayer monsters in the Monastery of Ascension as tertiary drops. The base drop rate for Rorarii, Gladii, Capsarii and Legiones is 1/64 for any key, or 1/384 for a specific key. Scutarii have a slightly more common rate of 1/50 for any key, or 1/300 for a specific key.
This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!
- patch 24 July 2013 (Update):
- Temporarily increased the drop rates slightly of the keystones in the Order of Ascension dungeon.
- hotfix 4 June 2013 (Update):
- Using an Ascension keystone on a door will now consistently spawn the correct boss.