(メガシードラモン（X抗体） MegaSeadramon (X-Antibody))
|Cards||(Ja:) Sx-25, Sx-59, Bx-21|
MegaSeadramon X is a Aquatic Digimon and a carrier of the X-Antibody. Having survived in the intensely competitive Net Ocean since ancient times, Mega Seadramon, who is called the king of the Seadramon-species, appears with that body color having outlived others in every region of the Net Ocean, from ice-bound seas to tropical waters. By repeatedly using its Special Move "Thunder Javelin" in countless battles, the blade on its calvaria has been well-tempered and honed, and its conductivity has also increased.
- Thunder Javelin: A powerful lightning strike fired from the blade on its calvaria. There is a generator device equipped in the carapace on its head so that it can enable this Special Move.
- King Javelin: Thrusts its blade into the enemy and tears them to pieces.
- Maelstrom: Creates an electrified tornado.
MegaSeadramon X is based on sea serpent.
- MegaSeadramon (X-Antibody) (メガシードラモン（X抗体）)
- MegaSeadramon X (メガシードラモンX)
Name used in Digimon Collectors.