Regalecusmon

Regalecusmon is an Aquatic Digimon. Regalecusmon is a pirate. It is also the ruler of the abyss that stands at the apex of the food chain due to its overwhelming power. Its sword, made after tearing off a Zudomon's horn, and the giant pincer on its left arm, are symbols of awe which strike fear into those who see them.

Attacks
 * Briona Strike: Pierces the enemy using the sword in its right hand, along with a flash of lightning.
 * Reactor Discharge: Blows away everything around it, including seawater, with plasma discharged from its pincer.

Etymologies
Official romanization given by the Digimon Reference Book and used in the franchise.
 * Regalecusmon (レガレクスマモン)