(グレイモン（X抗体） Greymon (X-Antibody))
|Prior forms||Agumon X|
|Next forms||MetalGreymon X|
|Cards||(Ja:) Sx-8, Bx-26, Bx-111, Bx-175, DM-235|
Greymon X is a Dinosaur Digimon and carrier of the X-Antibody. The most outstanding among Dinosaur Digimon as a Combat Species, Greymon became even more aggressive. Although it has a relatively small build among Dinosaur-types, many of which are large Digimon, it has fully exhibited its carnivorous dinosaur-like ferocity, winning in battles and increasing its own strength. By enhancing "Nova Blast" to its utmost limit in its mouth, it acquired its "Mega Burst", which possesses explosive power.
- Nova Blast (Mega Flame): Spews extremely high-temperature flames from its mouth and reduces everything to ashes.
- Mega Burst: Uses a technique possessing explosive power in which it enhances its "Mega Flame" within its mouth to its utmost limit.
- Great Antler
- Grey Tooth
Its design carries elements of the Ceratosaurus.
- Greymon (X-Antibody) (グレイモン（X抗体）)
- Greymon X (グレイモンＸ)