Doryani's Institute

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Doryani's Institute
IdGemRoomIII
Tier3
ArchitectZalatl, Architect of Thaumaturgy
Contains chests full of gems and a device that can corrupt gems in a special way.
GemRoom3 incursion room icon.png
The enlightened fall victim to Doryani's dark dictum.

Goodness, if Chitus had ever found these... he'd have been unstoppable.

Alva

Doryani's Institute is a level 3 incursion room. It upgrades from Department of Thaumaturgy, itself from Gemcutter's Workshop.

The room contains a device called Lapidary Lens that "double corrupts" a skill or a support gem. The room also contains Thaumaturgy Vessels.

The chance for a Lapidary Lens to increase a gem's level by 1, without losing quality, is 20.83%, compared to the 12.5% with a Vaal OrbVaal OrbStack Size: 10Corrupts an item, modifying it unpredictablyRight click this item then left click an item to corrupt it. Corrupted items cannot be modified again.
Shift click to unstack.
.

1/4 * 1/2 * (2/3+ 1/6) + 5/8 * 1/3 * 1/2 = 5/48 + 5/48 = 20.83%. 
Respectively: odds of hitting level change on first corruption * The odds of it being +1 level change * (the odds of hitting non-quality change on the second corruption + the odds of hitting positive quality change) + the odds of hitting non-level change or a positive quality change on the first corruption * the odds of hitting level change on the second corruption * the odds of it being +1 level change

Noteworthy combination chances:

+1 Level and + Quality = 4.167% (3.75% for 23% quality)

+1 Level and - Quality = 4.167%

+1 Level and Nothing = 8.333%

+1 Level and Vaal if able* = 8.333%

-1 Level and + Quality = 4.167% (3.75% for 23% quality)

+ Quality and Nothing = 8.333% (7.5% for 23% quality)

+ Quality and Vaal if able* = 8.333% (7.5% for 23% quality)

Only Vaal if able* = 16.667%

  • If a gem doesn't have a vaal option, then it does nothing and it's chance is added to doing nothing.

Trivia

The room is named after Doryani, who was known for his thaumaturgy with virtue gems.

Version history

Version Changes
3.5.0
  • Introduced to the game as core mechanics.
3.3.0
  • Introduced to the game as league mechanics.

ru:Аудитория Дориани