Auto-translated
The city isn't needed; they're already dealing elemental damage as if it were there, or it's already defined somewhere, but the elements themselves aren't displayed on the scale, like in the original Heroes. In the original game, your own army doesn't deal elemental damage; only Erin's spells do, due to "Sense Elements," and the elemental resistances are displayed on the enemy's scale. We need to somehow bring back the elemental resistances.