Thank you for your valuable comments on the major omissions in the setting of the ashtray hero Corps.
In this book, the ashtray has been replenished. "Therefore, the basic point of forming an army is that the vice heroes should complement the main heroes' abilities. Of course, the warrior main heroes with high attack and defense should recruit magic vice heroes. The magical heroes with low attack and defense must recruit warrior vice Heroes with high attack and defense.
At the same time, players can also appoint vice heroes with outstanding attack and defense attributes as the commander. In this way, the attack and Defense Skill Bonus of the whole army is mainly based on the vice heroes who are the commander. In this way, Magic players only need to focus on cultivating one attack and defense vice hero. In fact, Magic players appoint vice heroes as the commander... "
In short, it is set that players can appoint vice heroes as managers. Thank you for your warm tips.