There are a lot of deck resources for Magic. MTGGoldfish, MTG Melee, MTG Top 8, MTGAZone, AetherHub, etc. These won't all be Arena-focused, some specialize in tournament decks, others have user-submitted decks that may or may not be worth building, but the major thing to look out for is budget decks for tabletop won't necessarily be budget on Arena as in paper certain rares and mythics may be dirt cheap while on... Source: about 2 years ago

Arena has better third party tournaments when it comes to prizes. You can find these tournaments on mtgmelee.com. MTGO has had great third party organization too, but typically they are free to play tournaments with small rewards, while mtgmelee tournies have entry fees + prizes or in some cases free with prizes for big promotional events. Source: over 2 years ago

Check out this video, https://www.youtube.com/watch?v=yW-ZL2rQAZI In addition you can join free tournaments on sites like https://mtgmelee.com/ that have cash prizes for top finishers. Source: over 2 years ago

Deck submissions are required through mtgmelee.com for the Legacy Main event and Modern Memorial. Deck entry will be available a week or two before the start of the event date. Source: about 3 years ago

Tournament decks mostly, which then get picked up, tuned and promoted by streamers. mtgtop8.com, mtgdecks.net and mtgmelee.com are good starting points. Source: about 3 years ago

While it's gone, you can still improve your limited play by grinding MTG Arena limited games with arena tutor, installing the 17lands client to track draft stats, practicing building draftand sealed decks using draftsim, the 17lands mock draft feature, or draftmancer, and generating sample hands/testing decks against each other in the archidekt sandbox. Source: almost 2 years ago

It’s in the log files. I use Arena Tutor. It pulls the logs as they are written and tracks win/loss by deck and by overall matches. Source: over 2 years ago

If you're looking for a free draft assistant, you might want to try the Arena Tutor by draftsim (https://draftsim.com/arenatutor/). It helps you to assess the power level of cards during the draft and it also gives you weighted scores for cards depending on the cards you already picked. Finally it also offers you a decklist once you're finished drafting. It's not a perfect tool, since it might have problems... Source: over 2 years ago

Then you'll want to install the trackers from https://draftsim.com/arenatutor/ and https://www.17lands.com/user . The draftsim arena tutor will help you out while you play, by giving you draft recommendations (I recommend avoiding using the actual "top" card it gives you, but having a way to look at card ratings while you draft is critical for knowing the best and worst cards in a set.) The 17lands tutor helps you... Source: over 2 years ago

I'm looking at drafting and sealed more as a way to build up my card pool. Learning more about it, I found this "assistant" and now can't help but wonder if I'm playing against people who are using this tool. https://draftsim.com/arenatutor/. Source: over 2 years ago