"_____" of concealed blades

[Mildayrea Blacktouch]

does anyone know the actual trivs? i tried making the sleeves, but it said that my skill was not high enough to attempt them. is this a DoN item?

[Maevenniia]

These are skill-restricted combines for the rogue epic 1.5 quest.

I don't recall what the minimum skill required is, but they all seem to trivial at 15.

[Akishka]

If memory serves me right, all those with the 15 trivial require 100 skill to make.