Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s all about finding the right balance. Make sure your deck has a good mix of cards for different situations – including removal, creatures, and card draw. Don’t forget to pay attention to your mana curve to ensure you have a balanced distribution of low and high-cost spells. And most importantly, playtest your deck regularly to see how it performs and make adjustments accordingly. Happy dueling!