In-Game Army Complete Notification
Pretty obvious from the title of the post. But a good addition to the game would be an in-game army complete notification with a popup and alert sound.
Reason for the in-game notification is that I know many people who play clash the majority of the time is after work while at home, maybe watching tv. While they are waiting for an army to finish cooking, they are watching TV, not really paying attention except to maybe keep the game on so they remain on-line and are not attacked.
While we are not paying much attention to the game (but still keeping it active), and army will usually complete and until we realize it,... time is lost.