Before the eratta: broken After the errata: probably still broken. Zigil Miner's ability is the driving force of some decks, a very powerful card in many, and a reasonable excuse to include him in almost all. I have however included him in decks for the sole purpose of being a good, cheap dwarf to quest with. Good archetypes to use with are: Caldara Dwarf Mining Mono-Spirit any deck with Imladris Stargazer (not really an archetype)

Imladris Stargazer, Zigil Miner, and Hidden Cache are insanely good together. If you're doing that, it often makes sense to include Ered Luin Miner too. It's obviously great to trash extra copies of unique cards like Steward of Gondor (or whatever it might be in your favored deck). If Dáin Ironfoot is at the table, then Zigil Miner is a fine questing or attacking dwarf even without mining. This has been one of my favorite cards from when I first played it all the way until now roughly a decade later.