Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s important to have a clear strategy in mind. Whether you prefer aggro, control, or combo decks, always focus on synergy between your cards. Make sure your deck has a good mana curve to ensure you have plays in the early, mid, and late game. Don’t forget to include some removal and card draw to handle different situations. And most importantly, playtest your deck to see how it performs and make necessary adjustments. Happy brewing!