Aži Dahāka

Aži Dahāka is an Evil Dragon, known as the Diabolism Thousand Dragon that was mentioned and has yet to appear in the series and is currently affiliated with Qlippoth.

Personality
It is stated that Aži Dahāka is a cruel and wicked Dragon. It is also implied that he may enjoy pain, as he keeps standing with wicked laughter while receiving damages from Vali Team.

History
In the past, Aži Dahāka fought against the army of the Gods of the Zoroastrianism. He, then fought and defeated by the hero, Θraētaona, and was later sealed. but was revived by the Khaos Brigade sometime before Volume 14.

Plot
In Volume 15, it is revealed Grendel, upon arriving at Vali's location, ended up quarreling with another Evil Dragon, Aži Dahāka, allowing the Vali Team to escape.

Power and Abilities
Immense Magic:

Immense Durability:

Weaknesses and Vulnerabilities
Like all Dragons, he is vulnerable to Dragon-slaying items such as the Dragon Slayer swords Gram and Ascalon and the poison-like curse of Samael which is known as the ultimate Dragon Slayer.