Walkthroughs for custom maps.

As a rule, the AI switches to casting offensive spells in two cases:
1) it has cast all the spells it deems necessary and applied all the debuffs it wants to us;
2) it feels like it's losing.
In the first case, you need to cast a dispel spell at a certain point. Then the AI enters a cycle of casting the same type of spell. In the second case, you need to completely drain the AI's mana before you start seriously destroying its army.

But if the AI's offensive magic is very strong (e.g., high-level magic specialists), and it realizes that it can defeat us with 1-2 casts, then only antimagic or creatures with immunity can save you.

However, this isn't always the case. I used to think that it wouldn't attack until it had applied buffs, etc., but that's not true!
There are also problems with dispelling. And if you have a Water Expert? The dispel spell also affects you. The same goes for bog spells and antimagic.

Yes, I've noticed that it starts attacking when it's losing.

Added 1 minute ago
I've also noticed that sometimes, if you cast an offensive spell first, the AI starts to imitate you.

Added 4 minutes ago
Oh! I also wanted to ask.
Is there a method for this?
The AI has Slow and Haste.
How can you (sequence of moves) prevent the situation where you end up with Slow and it has Haste?

Because sooner or later, on the second or third turn, this situation occurs, and you get destroyed by a single attack.
Do you cast Slow, do you use dispel...?

If there's a similar scheme, for example, you cast Curse, and the AI heals on the next turn, and you cast Curse again, and so on until its mana runs out or you shoot it down.