Ancient Dragon Spirit Card Set:

Phenex
Ancient demon dragon that has been banished to the inferno a thousand years ago.

Lucifer The Grandmaster
Lucifer the Grandmaster of the ancient technique was imprisoned in the ice dragon in the deepest depth of hell.

Viper Venom Dragon
Legendary mythical venomous dragon that lives in the forbidden forest. Only a few demons have ever witnessed this dragon.

Gemini Twin Dragon
Twin head dragon that summons lightning and thunder with its musical instrument.

Nagaz The Dark Warlord
Ancient dragon that waged war with humans a thousand years ago.

More details on the official game page of Ancient Dragon spirit card set ...