Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s all about finding the right balance. Make sure you have a good mix of creatures, spells, and lands to ensure consistency in your draws. Consider your mana curve – having a variety of low, mid, and high-cost cards will help you maintain momentum throughout the game. Don’t forget to include cards that can deal with different threats your opponent might throw at you. And most importantly, playtest your deck to see how it performs and make adjustments accordingly. May your opening hand always be full of land and spells! Good luck out there!