Discussion about the FORTRESS race – Dwarves.

Depending on the rune the unit steps on, its effect is applied.

Therefore, to prevent the dwarves from getting additional runes, you need to send a suicide monster that will remove the runes. But the dwarves are tough. Especially their additional unit during a castle siege, and their ultimate ability ruins all plans. The only way to counter them is to play against elves with their ultimate ability. Then there would be a balance.