In Dark Souls, which boss’s tail can be severed to obtain the Moonlight Greatsword?

In Dark Souls, Seath the Scaleless has a severable tail that yields the Moonlight Greatsword.

Seath is fought in the Crystal Cave, where the player must navigate invisible crystal paths and falling hazards before reaching the boss arena. To receive the weapon, the player must attack the rear portion of Seath’s large central tail rather than simply defeating him. The tail-cut requirement makes positioning especially important because Seath’s body and other tail sections can obscure the target.

The Moonlight Greatsword is one of the series’ signature weapons and scales primarily with intelligence in Dark Souls. It deals magical damage and fires a blade-shaped projectile with its strong attack. Players sometimes confuse Seath’s reward with weapons obtained from other dragon tails, such as the Drake Sword from the Hellkite Dragon or the Dragon King Greataxe from the Gaping Dragon.