Index -> Interface -> Casual Lobby -> Practice Games

A Practice Game can be played by any two players, even if there are no cards in their collections. Each player in a Practice Game uses a fixed deck to play. The two decks are the same in each Practice Game, and are randomly assigned to the two players.

To create a Practice Game, click the Practice Game icon at the top right of the Casual Lobby. You can join a Practice Game in the same manner you join a normally-created game.