Archfiend

According to the Upper Deck website, "Archfiend is a special category of card. Most Archfiends can be identified by their name. Any card with "Archfiend" in the card name, is an Archfiend." This category was officially introduced with the release of Dark Crisis, as a way to standardize the English translation of OCG card names containing "Demon" (ヂーモン).

Since some Japanese cards with names containing "Demon" (ヂーモン) had already been released in the English TCG, they were retroactively classified as "Archfiends", although their official names were left unchanged. These include "Summoned Skull", "Beast of Talwar", and "Axe of Despair", among others.

Archfiend Monsters

• Archfiend General
• Archfiend Marmot of Nefariousness
• Archfiend of Gilfer
• Archfiend Soldier
• B. Skull Dragon
• Beast of Talwar
• Cyber Archfiend
• Darkbishop Archfiend
• Desrook Archfiend
• Diablos, the Demon King
• Fiend Skull Dragon
• Infernalqueen Archfiend
• Lesser Fiend
• Mist Archfiend
• Shadowknight Archfiend
• Shadow Tamer
• Skull Archfiend of Lightning
• Summoned Skull
• Terrorking Archfiend
• Toon Summoned Skull
• Vilepawn Archfiend
• Wicked Mirror

Non-Monster Archfiend Cards

• Archfiend's Oath
• Archfiend's Roar
• Axe of Despair

Archfiend Support Cards

• Battle-Scarred
• Checkmate
• Falling Down
• Pandemonium
• Pandemonium Watchbear

Japan-Only

• A Deal with Dark Ruler