what about a whole new game style.
There would be diffrent type of heroes. You can choice one of them. Then the meaning of the game is to destroy your enemies castle, and they have to kil you, by sending unite against you. by the way you dont have any castle or unite. you lose the game, when your hero is dead. your hero can lvl up and get skills/abilities. you can also wear items like: armor,weapons,boots,glowes all those kind of items.
this way, we will focus more on the main charater, and not the unite we create.