Just got into this game recently and I finally settled on a deck I was proud of after playing it, lol.
After playing the game it doesn't take long to figure out how useful Ally cards are in the grand scheme of things. The Mirkwood cycle gifts us with a series of Eagle allies that have some pretty unique synergy with one another, so naturally I was instantly interested in arguably the game's first Creature-based archetype.
I'm not sure if Dwarves was the best approach with this, but they had a lot of solid synergy and both of the base set dwarves Gimli and Thalin were pretty strong in their own right, so I feel like utilizing them with Dain + the Eagles was suited in the long run.
This deck is designed to tackle the entirety of the Mirkwood cycle.