Rules glossary
↑ Parent rule: 104.4 There are several ways for the game to be a draw.
104.4b If a game that’s not using the limited range of influence option (including a two-player game) somehow enters a “loop” of mandatory actions, repeating a sequence of events with no way to stop, the game is a draw. Loops that contain an optional action don’t result in a draw.
No sub-rules.