Similar to Soul Greatsword; when cast, creates a greatsword composed of Dark energy, which the player swings in a horizontal arc in front of them. However, unlike Soul Greatsword, it also unleashes a mid-ranged projectile in mid-swing, similar to that of the Moonlight Greatsword.
- The arc of the greatsword can go through walls if close enough.
Like all other spells, the amount of casts per slot increases upon reaching certain Attunement milestones:
|Attunement Level||Amount of Casts|
| Affinity • Climax • Dark Dance • Dark Fog • Dark Greatsword • Dark Hail • Dark Orb • Dark Weapon • Darkstorm • Dead Again|
Great Resonant Soul • Lifedrain Patch • Numbness • Profound Still • Promised Walk of Peace • Recollection • Repel
Resonant Flesh • Resonant Soul • Resonant Weapon • Scraps of Life • Twisted Barricade • Whisper of Despair