You must destroy all heroes and dungeons. This time I don't take the transfer bonus because it take too long to reach (research bridge, build bridge, destroy magic door, disable a lightning trap).

0:15 this is the corner trick, there is a gap allowing creatures to enter or leave your dungeon, but this gap get closed when walls are fortified. You can thus go out and still protect your dungeon. 0:32 you can drop imps and only imps on unclaimed path 1:13 the samurais are heading to the blue keeper, and will destroy him 1:21 I must wait for the knight because he is too close to the center building. If I go too close or if I claim the ghosts it will trigger an action point and other heroes will come. 1:43 it was not a fast knight kill but not a slow one either 3:00 samurais are hard to hit and they have the annoying freeze spell. Killing them can take hours but this time it was fast for the two of them.