Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s all about finding the right balance between your cards. Make sure to have a good mix of creatures, spells, and lands in your deck to increase your chances of drawing what you need. Consider the synergy between your cards and have a clear strategy in mind. Don’t forget to include some removal and card draw spells to handle any situation. And most importantly, playtest your deck to see how it performs and make adjustments accordingly. Happy deck-building!