Leagues in Path of Exile represent the game worlds that characters exist within. A single character can only belong to one league at any time, and can't interact with characters outside that league. Characters used in certain races (notably Descent, Descent: Champions and Endless Ledge races) are afterwards sent to a Void League instead of being deleted. Players can't access these characters or their inventories; void characters can only be deleted or kept as a sort of trophy.