that's a shame, its a lot easier to get dust with a lot of wild cards bc wild is easier, and bc tavern brawls, as f2p from now on i'd recommend keeping good classics.
BUT i will say, if you have good standard cards, you can make a good wild deck for quite cheap, the dust to evolve a standard deck to a good wild deck can be just a few hundred since a lot of the wild staples are commons, and most of the standard god tier leggys are still god tier in wild, you just need filler
first goldy, woot. most of it was done in wild ranked before they nerfed COTW. I had like half a dozen wild homebrew deathrattle hunter decks for months before they nerfed cotw and had easy rank 5's every month with them, about 400 of those wins were with those crazy decks. twas a golden age my friends.