Duel Commander is a community-driven competitive format for one-on-one Magic: The Gathering games, based on the Commander (EDH) rules. Designed for focused, strategic play, it uses a 20-life starting total rather than the 40 life common in multiplayer Commander. Players build 100-card singleton decks led by one or two legendary commanders, with a regularly maintained banlist intended to support balance in two-player games.

The Duel Commander Committee provides the format’s official reference point, including comprehensive rules, quick rules, FAQs, banlist information, announcements, and community resources. Its website also features competitive decklists, metagame analysis, strategy guides, and guidance for new players. The format supports a range of approaches, from aggro and control to combo and midrange, and is played in online and offline tournaments as well as casual sessions.

Players can connect through community channels, find opponents, and explore play options such as Magic: The Gathering Online, Spelltable, and Cockatrice. Regular updates and events help players follow changes and engage with the wider Duel Commander community.