Heroes should become much stronger. When the enemy can send troops that are indevidually stronger than the hero, battle becomes too hard. you chould be able to control the direction your hero moves and should be able to upgrade the hero like normal troop to make them much stronger.
The hero is already STRONG. Each level, their stats increase by 10-12%. And I'm only lvl 10. Think about it when you are even higher...
Funny when you Scrimmage your allies or guild mates, Their hero can move towards your hero, and then can battle. LOL
Not sure if that's a glitch or not.