Hey fellow Planeswalkers! When building a deck in Magic: The Gathering Arena, it’s essential to have a clear strategy in mind. Start by choosing a win condition and then select cards that support that goal. Remember to maintain a good balance between creatures, spells, and lands to ensure consistency. Don’t forget to include some removal and card draw options to handle different situations. Test your deck against different opponents to see how it performs and make adjustments accordingly. Happy deck-building!