I am still relatively new to game and stink at deckbuilding. I tried to build a dwarf deck for Khazad Dum, which I just recently got. The heros were Gimli, Thalin and Dwalin. I only have the first 3 APs of Mirkwood..waiting on reprint for the other 3. I also have Watcher in Water/Foundations of Stone/Shadow and Flame.
Regardless of what cards I had in my deck, it seems like without Dain's ability, hero dwarves just don't have enough willpower.
During the "into the pit" setup, I had to add an enemy with 3 threat. In round 1, the card revealed during the quest phase was another 3 threat enemy. So 6 threat and exhausting all 3 dwarves still only got me 4 willpower. So I essentially lost right away as there was no way to recover from that. It might take another round or two to get out an ally with any questing power and since you can't engage enemies in the first location, there is no way to reduce the threat in the staging area (as far as enemies go). It just kept climbing and my threat kept rising. I was able to use cave torch successfully a few times but each time an enemy card was revealed that I couldn't engage, it brought me closer to the end. I think I stopped after round 4 or so with 45 threat on my dial and zero progress on the first location (east gate?).
I did have a few cards in the deck to boost willpower but by the time I got them in my hand or had the resources to play them, they weren't going to make a dent, haha.