Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s all about finding a balance between powerful cards and synergy. One tip is to focus on a specific strategy or theme for your deck rather than trying to fit in too many different cards. This way, your deck will have a clear direction and purpose. Also, don’t forget to regularly check your mana curve to ensure you have a good balance of low-cost and high-cost spells to play at any stage of the game. Happy brewing!