Nuckelavee

A Nuckelavee (unofficial) is a large, horse-like Grimm.

One was known for wandering around the continent of Anima. In "No Safe Haven", it was defeated with the combined force of Team RNJR.

Appearance
The Nuckelavee is a horse-like creature with an equine main body and a skinless humanoid creature that is fused with it. Its forelegs are shaped like claws and it has hooved hindlegs that leave a characteristic hoofprint. The humanoid body has long curved horns on its head, a mouth that looks almost sewn shut, and two long elastic arms each with two clawed fingers. On the back of the human torso are boney spikes along its spine and a variety of weapons from previous battles stuck in it.

When walking on its equine legs, its attached humanoid portion hangs limp to one side, making its arms drag along the ground. Once the equine portion stops to stand still, only then does the humanoid portion of the creature seem to "come to life", doing so with a spasmodic twitching movement. When enraged, the spikes on its spine lengthen, as do its horns, its pupils become vertical slits, and its mouth opens completely.

History
Its appearance was first hinted at by its hoof print in Shion in "Remembrance", which Lie Ren and Nora Valkyrie discover. Later on, its hoof print was shown again in "Two Steps Forward, Two Steps Back", but it was unnoticed by Ruby Rose and Jaune Arc.

Its first physical appearance was in "Kuroyuri", despite only appearing as a silhouette from the smoke of the Grimm's rampage, causing havoc in the town of the same name. The creature is responsible for the death of Ren's parents and the destruction of Kuroyuri. It was shown heading back to the same village years later after leaving a cave filled with lost and discarded weapons, encountering Team RNJR. After a long fight, the Grimm is defeated by RNJR and slain by Ren.

Abilities and Powers
The Grimm has been credited with the destruction of Oniyuri and played a role in the destruction of both Shion and Kuroyuri. Despite its jerky movements, it is quite fast and uses its unnaturally stretchy limbs to attack. Its screams are also very discomforting to the ear.

Trivia

 * The Grimm is based on the Nuckelavee, a creature from Orcadian mythology with origins from both Norse & Scottish mythology. The Nuckelavee was commonly blamed for disease and destruction of crops.
 * This Grimm was thought up by Kerry Shawcross.