Alphamon

Alphamon is the "true leader" of the Royal Knights. With his "Alpha-Gain-Force", an unrivaled power, he is meant to be forever absent from the Royal Knights ranks and has been given the title "Lord of the Empty Seat". Alphamon only appears when the Digital World is in dire crisis.

Alphamon's name is a reference to alpha, the first letter of the Greek alphabet. This creates a thematic link with himself and Omnimon, whose Japanese name is Omegamon - effectively, a reference to the concept of the Alpha and Omega.

Alphamon is one of the main characters in Digital Monster X-Evolution.

In this movie, Alphamon was the former leader of the Royal Knights, and the Mega form of Dorumon. At the end of the movie, he sacrificed himself by impaling both himself and Dexmon with his "Ultimate War Blade King Dragon Sword".

Alphamon is once again the final form of Dorumon, who is Hikaru Ryuuji's Digimon partner. In the manhua's final battle against the ancient Dexmon, he's revealed to actually be Alphamon, the leader of the group known as the Holy Knights, from long ago. Alphamon and OwRyumon DNA Digivolve together to form Alphamon (Ultimate War Blade King Dragon). Alphamon's appearance changes, with feathered wings on his back and OwRyumon becoming his sword, the War Blade.

Though he did not have any episode appearances or mentions in the entire series, he did make a small cameo appearance as a silhouette in the second opening, standing along side the other Royal Knights. He is the only one of the revealed Royal Knights that doesn't make an appearance in the series proper.

Attacks

Digitalize of Soul: Summons a monster from another world that devours his enemies. The attack is also depicted in the form of firing multiple green energy beams from his hands. Holy Sword Gradalpha: Summons his unique weapon, the holy sword of the same name, within an another dimension. Ultimate War Blade King Dragon Sword: Summons and attacks with a massive sword