Auto-translated
Yes, to avoid unpleasant situations like the one described in the first post, it's important to develop quickly from the start and attack the enemy first, before they become too strong and their mana reserves allow them to "overwhelm" you, or before they acquire powerful, high-level spells.
Just yesterday, before going to sleep, I had a similar situation: I attacked the enemy several times, and each time he defeated me, and he won precisely by summoning a large number of stacks of elementals; if it weren't for the elementals, I probably would have been able to defeat him; it's true that he has more "hit points," but I have more mana.
Воскресайте, камінні душі, Розчиняйте серця і чоло, Щоб не сказали Про вас грядущі: їх на землі не було…
(Василь Симоненко. Люди – прекрасні)
(Василь Симоненко. Люди – прекрасні)