And that's why Dain is restrictive, he literally nerfs every dwarf before their release.
In theory, yes. But have you seen this in practice? If you look at the list of dwarves we have, most of them follow the general "X cost 2X stats" curve that we see across the board, if not better. Sure, there are some duds (I'm looking at you Bombur ally), but every other trait has duds too.
That upcoming Dwarven Sellsword doesn't feel shortchanged for stats either...
Pretty much stole the words from my brain. The average dwarf really doesn't feel under-powered. And the Sellsword looks hella-sexy.
To @John Constantine's point though, Dain may be preemptively nerfing the HIGH end of the Dwarf allies and Heroes. I could see FFG intentionally holding back just a bit ASSUMING that Dain would be in play when balancing a more powerful character (I feel like the new Dori may have fallen a little foul of this...) but the average dwarf is no pushover without Dain when looked at in the context of the whole cardpool.
Yeah, Dwarf allies are fine without Dain, and then Dain makes them better. And I strongly disagree with the claim that he encourages interesting deck-building. The 5 dwarf stuff from the Hobbit boxes, the deck-mining sub-theme of the trait, these encourage interesting deck-building. With Dain, you just spam a bunch of allies which were already good and they become even better with no effort on your part beyond that one hero choice.
That's actually pretty fair. You COULD do that. I think it would bite you pretty bad in a number of quests but it would work okay for a lot of them.
I find Dain an interesting card to build around precisely because his effect is universal. As someone who plays the game pretty much exclusively with people who don't own it, I end up building everyone's decks myself to compliment eachother. That can present interesting decisions.
There are only so many Dwarves—how do I distribute them? Do I focus on the cheapest/weakest allies possible to leverage Dain to his maximum effect or bank on some of the slightly more expensive allies--and that's before we make room for some of the great Dwarf attachments and events. Leadership has the best Dwarf cards, how do I distribute them assuming Dain will be anchoring one Hero slot going in. Do I go Mono-Leadership for that deck and restrict the allies I can drop or give up Thorin or Balin (both great cards).
Maybe it’s the way I build my decks (always building each one to compliment all the others with a single cardpool) but to me he DOES generate some interesting choices along with all the other Dwarf mechanics you mentioned.