Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, one trick I swear by is maintaining a good mana curve. Make sure you have a good balance of low, mid, and high-cost cards to ensure you can play something each turn. Also, don’t forget to include some removal spells and card draw to keep your options open during a match. And lastly, always playtest your deck to see how it performs and make necessary adjustments. What are some deck-building tricks you swear by? Let’s share our knowledge and improve together!