I may not be the first one to say this and will remove this post if I'm not.
I don't like the idea of showing 1 deck to others since then in the end every time you get a oracle card just check here pick deck then come to top 10 how fun is that. It makes arena harder less original and kills creativity.
It depends on the enemys your deck encounters.
I've tested it now 3 times. A short time after a top ten deck have been posted
here, I had the same oracle card or a card, that was 5 times in this deck.
So I submitted exactly the same arena deck.
All 3 times the deck didn't even get in the top 50.
You can get ideas for a good lasting arena deck here.
But not a recipe for a succesfull one.