Just axing my way through the Copse, and noticed that demon skin isn't listed in the drops of the monsters that provide it:
Fallen Archfiend in Friars: Dark Heart of the Woods
Demoninja in Friars: Dark Elbow of the Woods
both of them in Pandamonium: Pandamonium Slums
The drop rate for each monster is listed as 15% on the Wiki.
This was in 10578, but I didn't see anything in the build notes of the later builds that indicated a change in these.
Fallen Archfiend in Friars: Dark Heart of the Woods
Demoninja in Friars: Dark Elbow of the Woods
both of them in Pandamonium: Pandamonium Slums
The drop rate for each monster is listed as 15% on the Wiki.
This was in 10578, but I didn't see anything in the build notes of the later builds that indicated a change in these.