Obsidian armor

This armor seems to be a set, but shows no visible set bonus. This armor provides no stat buffs, but lends itself well to occupying your vanity slot as its cost outweighs its utility.

Trivia
Possibly a reference to Scorpion from the Mortal Kombat series, although it is difficult to be sure.

Possibly a reference to the Hunter Armor from the game Bloodborne.