How can the game be made more realistic?

By the way, regarding the damaging beam? Did you know that this spell cannot be removed at all until the end of the battle? And if you blind the units and keep casting the damaging beam, you can completely nullify the unit's defense. As a result, it becomes much easier to kill them. Well, this is, of course, assuming you have enough mana. Because you need a lot of mana. Especially if there is a large enemy army. So it's not useless, it's just specific and you need to know how to use it.