The longer you play, the more likely you are to receive attacks from enemies. These are especially dangerous if nobles are included. A good way to deal with those attacks is retiming attacks. The ideal time to launch a counter attack, is the second the offensive troups are coming back. Due to the low defense at that stage, the offensive troops will easily be destroyed – and you’ll perhaps have an easy target to noble next.
With the Tribal Wars Bot you can calculate the return-time based on the arrival of the enemy troops, and schedule attacks in the bot and you are done. Since all your troops are faster than the noble of the enemy, you have a straightforward and efficient way to clean the enemy and possibly ennoble his village.