Demon of Song

The Demon of Song is a minor antagonist and boss in Dark Souls II. This grotesque frog-like monster mimics the singing of the Milfanito to lure human prey to its lair.

Biography
The Demon of Song was an ancient monster that brought havoc to Drangleic due to its appetite for human flesh. That was until it was finally captured and sealed within the Shrine of Amana. For generations, the priestesses of the shrine performed sacred rituals to keep the demon at bay. However, with the Curse of the Undead infecting Drangleic, the priestesses have since either died or went hollow, allowing the demon to escape its imprisonment to continue its man-eating hobby.

The Demon of Song moved further up the Shrine of Amana, residing in a partially flooded arena. It mimics the singing of the Milfanito that reside in the shrine, luring people to its lair for it to devour. The Bearer of the Cursed encounters two Milfanito in the shrine, but the third is not from a maiden, but rather the Demon of Song. Once it detects the player, it stops singing and immediately attacks them.

The Demon of Song's thick skin is extremely resilient to all attacks with the exception of the hollow face inside its mouth, which it covers up as it moves. The demon attacks by falling on the player, or using its lanky arms to grab or slam on the player. It also has a projectile move that it uses from afar, where it spits out balls of water. The Demon of Song moves and attacks slowly, but it deals a significant amount of damage.

Killing the Demon of Song makes it drop the Key to the Embedded, which can be used to unlock the cell imprisoning the Milfanito in Drangleic Castle who rewards the player with the Ring of the Dead. After she is freed, the other Milfanito in the Shrine of Amana will reward the player with Divine Blessings for silencing the "cursed singing".

Trivia

 * The Spotted Whip that can be created by Straid of Olaphis using the Demon of Song soul is highly poisonous, despite the Demon of Song itself not dealing any poison damage when fought.