Hey fellow Planeswalkers! When it comes to deck-building tricks in Magic: The Gathering Arena, one key tip is to focus on synergy between your cards. Look for cards that work well together and enhance each other’s abilities. Also, don’t forget about the mana curve – make sure you have a good balance of low-cost and high-cost spells to ensure you can play something every turn. And finally, don’t be afraid to experiment! Trying out new card combinations can lead to some truly powerful decks. Keep brewing and may your draws be ever in your favor!