TL;DR : I own LoE, BM, and want to dust the useless cards from them. Which ones are they?
I used to play hearthstone a while back (right before they announced a night in karazhan) and have been wanting to get back into it. I had previously bought League of exporters and the blackrock mountain, but since my focus is on standard play I thought I'd dust a couple of their cards to craft some other legendaries.
Now, ultimately I don't want to dust useful cards as I think they might still be fun once in a while/if I get an idea/in brawl or for expert solo, but I know there are some cards that never got used even when they were standard, so I was looking for your suggestions as to which ones those would be.
If relevant, I dislike playing shaman and druid, and would never be caught playing priest.