Thanks for playing. The player's attack is meant to be weak, it's only for you to gain souls and summon heroes at the early game. The summoned heroes are the ones who are supposed to be fighting. Once you have enough souls and golds, you can upgrade your skills and hence have more souls to summon heroes, and let them fight for you. That's the point of the game. Indeed there's still a lot to improve, so thanks for the advice.