The Evil Dragons featured in High School DxD.
“Crom Cruach is an Evil Dragon known as the Crescent Circle Dragon and is said to be the...Crom Cruach
“Apophis was a legendary Evil Dragon also known as the Eclipse Dragon and the Primal Eclipse...Apophis
“Vritra is one of the Five Great Dragon Kings. He is the Evil Black Dragon known as the Prison...Vritra
“Aži Dahāka was a legendary Evil Dragon also known as the Diabolism Thousand Dragon and Forbidden...Aži Dahāka
“Grendel is an Evil Dragon, known as the Crime Force Dragon and a member of Qlippoth, prior to...Grendel
“Niðhöggr was an Evil Dragon and a member of Qlippoth. He was known as the Abyss Rage Dragon and...Niðhöggr
“Yamata no Orochi was an Evil Dragon known as the Venom Blood Dragon and a member of Qlippoth...Yamata no Orochi