One good place to look for dwarf deck (or any deck) on arena is the MTGA arena zone website. Here is a link to a search for Depala decks: https://mtgazone.com/deck/depala-pilot-exemplar-historic-brawl-deck/
Oh sorry I missed your comment, I know it’s been a while, but if you are still interested let me know and I can send you some of my deck lists that I use. I have a few on arena too.
[[Gimli of the Glittering Caves]]
I am really hyped about [[doors of Durin]]. I have a [[lady of Otaria]] commander deck that is fun, but this is the first real support card for her.
Well I personally like that decision, besides there is only so much design space for Planeswalkers.
I guess what cards you want really depend on format. But if you just talking about some iconic cards that are not on the reserved list you got lightning bolt and counter spell for sure
Oh yes, crewing tapped vehicles is great. It always think of it as turning on the car but it is out of gas :)