As one enters the arena, immediately turn right and hug the wall to find it. Located in the Untended Graves, in the same arena where Champion Gundyris fought. Black Knight Glaive is a Weapon in Dark Souls 3. The halberd can be picked up without starting the boss fight. Glaive of the black knights who wander the lands. The unique attack of this glaive greatly reduces enemy poise, reflecting the tremendous size of the enemies that the knights have fearlessly faced. Skill: Spin Sweep Used to face chaos demons.