Hey fellow Planeswalkers! When it comes to deck-building tricks in Magic: The Gathering Arena, one important tip is to focus on synergy. Make sure your cards work well together and support a common strategy. Don’t just throw in powerful cards – make sure they have a purpose in your deck. Also, pay attention to your mana curve. Having a good balance of low-cost and high-cost cards will help ensure you have plays at every stage of the game. Lastly, don’t forget about card advantage. Including cards that draw you more cards or generate extra value can be game-changing. Happy deck-building!