Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, one trick I always rely on is to focus on synergy. Make sure your cards work well together and complement each other’s strengths and weaknesses. Don’t just throw in powerful cards randomly – think about how they can support your overall game plan. Also, don’t forget to keep your mana curve in check. Having a good balance of low, mid, and high-cost cards will help ensure you have plays at every stage of the game. Happy brewing!