Examine the vault (looks like a Celtic knot) on the floor of the The Lair of Scale ( 11, 121, 320 ) Copy/waypoint 11, 121, 320. The Lair can be reached by climbing the wall at the back of The Gorgs' Pit at ( 11, 121, 320 ) Copy/waypoint 11, 121, 320, and then going up the ramp.
Examine 'a dragon image' on each of the four columns of The Lair of Scale (the platform with the vault).
There is no actual image of a dragon and the exact location where you can click to examine is a bit buggy, so just move your mouse all over each side of the columns until you see it flash 'a dragon image'. The interaction point should be in the middle part of the column on the side facing away from the vault.
The furywing drakota placeholder for Koturah will NOT give the update for this quest. Respawn seems to be about 20 minutes.
Return and examine the vault at ( 11, 121, 320 ) Copy/waypoint 11, 121, 320. You are unable to turn the lock, but there is something written on the vault:
"When the staves of the yore scales meet the vortex of scaleborn, when the four arms are raised, only then shall the maw of fortune release itself."
This used to require the player to speak Draconic, but this requirement has since been removed.
Search around the dungeon for fifteen dragon staves, also called 'ceremonial darslayers'. Like collectibles, they have a set amount of charges and then they despawn. If this happens, wait about 5 minutes and they will respawn. They are spread throughout the entire Sanctum:
Follow the list below in reverse if you are starting from the previous step.
Ledge above the entrance/exit to The Gorgs' Pit ( -13, 74, 290 ) Copy/waypoint -13, 74, 290
Ledge above the entrance/exit to The Gorgs' Pit ( 29, 74, 290 ) Copy/waypoint 29, 74, 290
Ledge above the entrance/exit to The Gorgs' Pit ( 12, 74, 290 ) Copy/waypoint 12, 74, 290
If the above three locations have you going in circles, go to ( 10, 87, 287 ) Copy/waypoint 9.5, 87, 287 and look down to get a visual on the ledge.
Run over the Scaleborn vortexes throughout the dungeon and you will automatically place a dragon staff at it. Scaleborn vortexes are the snail-shell-shaped symbols with purple draconic lettering located on the ground:
Inspect the column at the middle of the Gorgs' Pit. ( 13, 55, 321 ) Copy/waypoint 13, 55, 321
Within 3-minutes, click four polychromatic (red) blocks found along all three climbable walls of the Gorgs' Pit (one on the east wall, one on the west wall, and two on the south wall).
If you have trouble seeing the red blocks (balanced or lower settings may have trouble), go to Options --> Peformance --> Detail Range --> and set it as high as possible.
The blocks are called 'loose blocks', you can click them from relatively far away, and they are always in the same place.
Within 3-minutes, click four gold blocks found along the south climbable wall.
Within 3-minutes, click flour green blocks found along the east climbable wall.
Within 3-minutes, click flour yellow blocks found along the west climbable wall.
Examine the vault again in The Lair of Scale ( 11, 121, 320 ) Copy/waypoint 11, 121, 320. Upon completion you will be ambushed by three amygdalans.