Deck out

A Deck out is a loss due to having no cards in the Main Deck when that player would draw a card. Mill Decks, such as "Laval", use this as their primary victory condition.

A Deck out can only occur when a card would necessitate drawing specifically; being unable to reveal (including excavate), look, add, send, banish, etc. cards from the Deck will not result in a loss.

In the anime

In the anime, a Deck out has occurred only three times: Seto Kaiba decked out against Maximillion Pegasus, Strings against Yami Yugi, and Howard X Miller against Jaden Yuki.

Duelists such as Seto Kaiba, Anubis. Zigfried von Schroeder (through Leon von Schroeder), Yami Bakura, Howard X Miller, Sartorius, Mr. Armstrong, Shadow Drone Trudge, Breo, Vector and Eliphas have attempted to cause their opponents to deck out, albeit unsuccessfully.