After immediately killing the formidable trio I got about 10 tatters and Shadow Reaper seems to cost only 1 along with 3 pure horror
Compared to components that are needed to make brightshade sword costs 4 pure brilliance and 3 husks to where getting those material may feel safer cause of only partial combat but they require work tools to get and time sink to farm.
There's clear unbalance there from my point of view unless decreasing husks needed for making the sword or increasing dark tatters needed for reaper cause primarily they are weapons with very strong damage