there is whole bunch of us who have finished the game on impossible no loss.
So here comes the ultimate chalenge:
1) impossible difficulty - naturally
2) no loss of unit whatsoever
3) no wanderer scrolls used. I personally used them only fighting Baal and K'tahu so i guess it can be done
4) no 5th level creatures used in the army. that pretty much makes paladin as the only option for tank i guess
5) no map kiting at all, you can force the creatures to move though. This is where it gets tough, first 4 islands I mean
6) for utter crazy folks - no pet dragon usage. He stays at level 1 just eating apples by the battlefied
anyone up for a challenge? Then you can say you conquered the game once and for all