Gold cards
I know I'm not the only person with this complaint, but I really wish Gold Cards and/or Mythics were easier to obtain in Arena. I understand these cards are supposed to be rare, but when every deck I see online or Top-8-ing are full to the brim with 25+ rares, it feels impossible to play multiple decks, let alone multiple formats, when you're constantly deciding which deck to build with your extremely limited resources. I refuse to spend $10+ for the cards from the "Arena Store". I just want to play the game, and I need access to more cards.
I suggest rewarding Ranked wins with a gold card, or 1/6 progress on a Mythic. Something that makes playing feel more rewarding. I enjoy grinding games on this app but there isn't currently enough reward specially in Golds/Mythics. Make it easier and people will play!!