Defensive gameplay and other tactics.

I think this tactic is already well-known, but I'll still explain it. When I play as Dungeon, I usually hire minotaur guards and, of course, dark raiders, plus other troops. So, during the battle, I send the minotaurs a little ahead so they can take the brunt of the enemy creatures' attacks. When the stack is attacked, I send the dark raiders to attack the enemy creature. When it's the minotaurs' turn to attack again, the enemy stack takes even more damage from 2 attacks with the "lizard bite" ability, and if you're playing with the hero Sorgal, the damage from the "bites" will be much greater. This is a simple but very useful trick.