Oh. Thanks :-)
It explains why i find it harder than when i played last time (in 2009), and much more challenging.

IIRC i was playing dual wield heavy str build in my first contact with game, relying mostly on passives and avoiding active skils. ATM i am playing magic missile mage char with more even stats distribution (like ~20 each stat with more int/vit) relying mostly on 2 or 3 actives and supporting passives (like mana cost reduction). The biggest threat so far are all "ranger" units which often 2-3 hit ko me despite fact that my ranged dmg reduction is around 35%. I am currently lvl 27 in raze flying fortress and iirc last time i finished whole orobas cliffs without any problems. So i find it harder than last time ( maybe my build is worse but for few years my gaming preferences changed and i enjoy playing more diversified characters than pure str "slash them until death" leftclick fiesta hero).