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Basically, I was recently playing as the dwarves. And my city was under siege. I couldn't engage in an open battle (I would be quickly defeated), so I decided to just shoot at them. Their troops approached almost right up to my walls, avoiding the mines, and waited for the catapult to destroy my wall. At that moment, I had an upgraded version of spearmen. I activated their ability and pulled the enemies right onto the mines!
Added after 11 hours and 23 minutes
By the way, summoning magic is the most convenient way to defend. For example, if the enemy destroys your gate with a catapult, you can place a wall of swords right in front of the gate, and another wall of fire in front of that. As a result, while their troops in melee combat break through the wall of swords, they will also take damage from the wall of fire. You can use these combinations not only in front of the gate, but also in front of the broken parts of the walls. You can place two walls of fire in a row. But this is usually against large creatures. So, summoning magic is great for defense. True, the wall of fire has now been moved to the Chaos school, but you can still learn this spell using the Wisdom ability.
Added after 11 hours and 23 minutes
By the way, summoning magic is the most convenient way to defend. For example, if the enemy destroys your gate with a catapult, you can place a wall of swords right in front of the gate, and another wall of fire in front of that. As a result, while their troops in melee combat break through the wall of swords, they will also take damage from the wall of fire. You can use these combinations not only in front of the gate, but also in front of the broken parts of the walls. You can place two walls of fire in a row. But this is usually against large creatures. So, summoning magic is great for defense. True, the wall of fire has now been moved to the Chaos school, but you can still learn this spell using the Wisdom ability.