The dungeons works

Some bugs (scripts or mobs) but functional. In the core folder, you can adjust the monsters damages in the World.conf file (no need to be lv 500

) : Text block looks like this :
Rate.Creature.Normal.SpellDamage = 1
Rate.Creature.Elite.Elite.SpellDamage = 1
Rate.Creature.Elite.RARE.SpellDamage = 1
Rate.Creature.Elite.RAREELITE.SpellDamage = 1
Rate.Creature.Elite.WORLDBOSS.SpellDamage = 1
Try different values

Maybe 0.5, 0.35...as you wish !
Have fun !
And don't forget ; You can add spells to your hero ; Like
Druid - Rejuvenation (usefull on bosses) and many others