Hey fellow Planeswalkers! When it comes to deck-building tricks in MTG Arena, one of my favorites is paying attention to the mana curve. Make sure you have a good mix of low-cost and high-cost cards to ensure you can play something every turn. Also, don’t forget to include cards that can deal with different threats, like removal spells or counterspells. And lastly, always playtest your deck to see how it performs and make adjustments accordingly. Happy brewing!