Rule 104.2 · Ending the Game

A player still in the game wins the game if that player’s opponents have all left the game. This happens immediately and overrides all effects that would preclude that player from winning the game.

An effect may state that a player wins the game.

In a multiplayer game between teams, a team with at least one player still in the game wins the game if all other teams have left the game. Each player on the winning team wins the game, even if one or more of those players had previously lost that game.

In an Emperor game, a team wins the game if its emperor wins the game. (See rule 809.5.)