I had previously used some mining in my dwarf swarm deck, ered luin miner, hidden cache, ered nimbus prospector , ect.
Now I'm really excited to make a true mining deck. Been so for some time. Every time I start doing so however, I find myself sliding into a dwarf swarm deck since that synergy is so strong with that trait.
I wish Ered Nimbus prospector and soldier of erebor were in tactics or spirit, since the new dain and thorin and dwarf pipe are in those spheres( as well as erebor guard ect).
I think the problem is at this point there are only 2 cards that really benefit from being discarded, and a host that discard.
So if you stay away from noldor, there isn't any special added benefit to discarding. And by putting in dwarves you begin to want to use the benefits they get when massing. I understand that stonehelm and new dain are good to slot in non mining decks.
Anyway, I'll keep trying because I love the idea!
Btw the new thrors ring is it's own archetype in my opinion, although it can easily slot into a mining deck. However I was think you'd want a lot of attachments to fetch rather than mining.