What kind of magic do you like?

Removing enchantments removes not only negative spells. If your enemies are undead? Mind control spells don't work on undead. For example, berserk and hypnosis, etc. But these drawbacks are insignificant compared to the advantages of Haven magic. Yes, it might be useless to create illusions against a necromancer, as they will simply "cancel the enchantments," but manipulating creatures with Haven magic (teleportation) is very useful when facing an enemy mage. I really like the "City Portal" spell. If the enemy is strong and difficult to defeat, I create illusions on the battlefield and then retreat with my "original" army back home. The illusions will remain and fight, even if not for victory. But there will still be enemy losses. I also like that you can use this spell not only in battle. When you are far from your city and have few troops left, you open the book, click, and you are already in the city. That's what I like most about it.