tips on paladin on impossible/no casualties/7 days/level 30

[Kings Bounty Hunter]

The no army-sacrifice thing has me puzzled. If you enter a battle with no units you automatically return to the castle with new units and money. How many times would you do this in Greenwort for example until you actually fight the enemies. Do the enemy stacks disappear if you deliberately retreat back to the castle?

The other thing is I can't be bothered to take 20/30+ turns to finish a battle which is what it sounds like you have to do to exploit the game.

I commend you on your efforts though.