Devack, known as Demak in the Japanese version, is a character in the Yu-Gi-Oh! Tag Force series. This is a video game depiction of Devack, a character from the Yu-Gi-Oh! 5D's anime.
Devack arrived at the Player's house and asked him to fight alongside him to which he agreed.
Unlike other tag duels, Devack preferred to duel solo, so it may be a good idea to edit his deck beforehand.
In the first event, Devack solo dueled against Leo and mistook him for Luna.
In the second event, Devack solo dueled against Mina Simington and mistook her for Akiza Izinski.
In the third event, Devack solo dueled against Tetsu Trudge and mistook him for Jack Atlas.
In the final event, Devack solo dueled against Crow Hogan and mistook him for Yusei Fudo.
In the end, the so called Signers were defeated, and the player was disturbed.
Upon completing the story, the Player received three copies of Devack's signature card, Earthbound Immortal Cusillu and his photo "Devack - End of Oppression?"
In the final event of Yusei's story, Devack dueled with Roman against the Player and Yusei.
In the final event of Luna's story, Devack dueled with Michael against the Player and Luna.
In the first event of Shadow Drone Trudge's story, in an odd twist of fate, Devack and Luna dueled against the Player and SD Trudge.
Tag Force 4
Tag Force 6
Two-Thousand Year Old Dark Beast
Thousand Year Old Shadow Beast
Three-Thousand Year Old Beast King
Four-Thousand Year Old Wicked God Beast
Tag Force Special