Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, one of my top tips is to focus on synergy. Make sure your cards work well together and have a clear win condition. Don’t forget to pay attention to your mana curve to ensure you have a good balance of early game plays and late-game threats. Lastly, don’t be afraid to test and tweak your deck based on how it performs in matches. Happy brewing!