Manuals for playing as Dungeon

Now, compare how often a phoenix attacks and how often a hero attacks; this will give you an approximate idea of your 1000 damage plus the damage from retaliatory attacks. Have you ever tried casting Crystal Prison on ranged units and then following up with a Fireball on the next turn? You'll get the same 1000 damage, but it will affect an area instead of a single target.

I still don't understand why everyone underestimates the Fire Trap so much. With spell power, these traps will deal devastating damage to infantry units.