Quick answer: Jade Mask is a Soul Tempering material found in Mirage Estate. It upgrades the Seamless Death.
Where to get Jade Mask
Jade Mask is found in Mirage Estate. The Mirage Estate collectibles page covers the rest of the region.
Jade Mask item card
The item card reads:
The wonder of illusion lies in the fact that beneath one mask rests yet another, in layer upon endless layer.
How many layers deep is the one before you now? Does whoever wore it still remember their own face?
Its effect line reads: “Used to Soul Temper Seamless Death.”
What Jade Mask does
To Soul Temper, pay 5,000 Remnant Dust along with the Jade Mask. Myst performs the process at the Order’s belowground tavern in Pangzhen. Find the complete instructions in how to Soul Temper.
When the tempering goes through, the Jade Mask and the 5,000 Remnant Dust are used up.
The upgrade is Ringstorm, and its effect reads: “Increases the number of Flying Rings thrown by all moves.”
