Talk:Sanctuary Onslaught/@comment-202.36.244.3-20180613210600/@comment-2A00:23C5:BD1B:3C00:E84F:6161:8F1F:EC0C-20180614034239

They might work in place of real eidolon shards for ranking up the quills, so you could farm for them in onslaught when waiting for the night cycle.. and maybe (but hopefully not) Eidolon shards will be used to craft new sentients-based equipment like Vlad or those Sentient hand cannons.