A number of players seem to suffer from farming a dungeon very frequently and not receiving the gear they want, so in order to help this problem, there would be 'tokens' that are specific to a dungeon, and every run you receive a few tokens or so for each complete run. Then, you may choose to spend those tokens on the boss chests to get a chance for a gear you want, as an alternative to spending crowns.
A number of players seem to suffer from farming a dungeon very frequently and not receiving the gear they want, so in order to help this problem, there would be 'tokens' that are specific to a dungeon, and every run you receive a few tokens or so for each complete run. Then, you may choose to spend those tokens on the boss chests to get a chance for a gear you want, as an alternative to spending crowns.
Sounds good, but maybe the tokens should only be dropped every once in a while. Keep in mind ftp crowns for a chest is like 5 videos/quizzes/some dailies. So a token every once in a while would be good, but not some each run.