Taking on the odds

[Hento]

In KBTL you were able to defeat enemies who were strong, very strong and lethal without zero losses on hard.

Yet in KBAP it seems that one has trouble doing that with "equal strength", on hard, with no losses, is there a specific class or special tactic that makes this possible or easier?

I'm as paladin on lvl 8 now and I can't get anything done despite having 29% critical on almost all my units and having 4 defence 4 attack 5 intellect, I basically have nowhere to go now...