I really hope they increase the drop rate for this mat. Have not gotten any from the dailies coffer...but have gotten 2 from deconning Frostbite weapons.
Sucks that there are furnishing plans from Blackwood..but obtaining the mats is rare.
My main source of style mats is always the gear I deconstruct.
Just be sure to have "Meticulous Disassembly" slotted and all the crafting passives unlocked and purchased in the chars you are attempting deconstruction on to maximizes your success chances.
"Sweet Mother, sweet Mother, send your child unto me, for the sins of the unworthy must be baptized in blood and fear"
There must be something about their supply as they seem to be the most expensive style material for as long as I can remember and also one that sells almost on the spot. I only ever get it from deconstruction.