Howling Moon(ハウリングムーン, Hauringu Mūn?), also known as Moon Song, is a recurring ability in the series. It is both a summon ability of Fenrir'sFinal Fantasy VI incarnation and a Limit Break of Red XIII, both of which generally provides status enhancements to the player party.
Howling Moon is the level 1 ability of Fenrir that requires the Blood Pact Rage to use, and uses up all MP to cast. It inflicts massive Dark-elemental damage to all enemies within the area of effect, and is only available during Astral Flow.
In many ancient cultures depicts wolves related to the moon. In Norse mythology, Hati Hróðvitnisson chases the moon. The Native American Seneca tribes believe that a wolf sung the moon into existence. A popular belief that there is some sort of connection between wolves and the moon, but canine experts have found no connection between the phases of the moon and wolf howling. In fantasy fiction, a common imagery has wolves howling at the moon.