The Sea Dragon is a Grimm that appears in the free online show RWBY
From RWBY
Description[]
The Sea Dragon highly resemble a typical Eastern Dragon, though it flies with large wings rather than magic. It has a long serpentine body with black scales, white underbelly scales and back spines, and glowing red "gills" near it's head. It has two small arms and spiny fins farther down it's body/ It's head has a white mask with red markings and yellow eyes, with intricate horns, fins, and long whiskers similar to eastern dragons. Large red wings can unfold from it's back.
Although it looks reptilian, it is actually a creature of Grimm, a race of ancient soulless monsters that have wandered the world of Remnant for as long as anyone can remember, and seek only to destroy humanity, as well as the human-like faunus. Grimm lack souls, do not eat, are attracted to negative emotions, evaporate in black smoke upon death, and and appear to grow in strength and intelligence throughout their seemingly indefinite lifespan. Their origins and methods of reproducing are unclear. However, the Grimm appear to be allied with a strange female entity known as Salem. Unlike most Grimm, only one sea dragon has ever been seen.
History[]
The Sea Dragon appears in the fourth volume of RWBY, where it abruptly attacks a passenger ship headed to the island of Menagerie. Two huntsman named Blake and Sun work to help defend the ship, while the captain devises a plan that allows them to impale the beast with the front of the boat, and blow it up with the ship's heavy cannon.
Abilities[]
The Sea Dragon is the only aquatic Grimm seen thus far, and can also fly quite well. Unlike many Grimm, it features a supernatural attack: Charging up and firing a beam of electricity from it's mouth.