Hey fellow Planeswalkers! When building a deck in Magic: The Gathering Arena, it’s crucial to have a clear strategy in mind. Start by choosing a theme or playstyle you enjoy, whether it’s control, aggro, or combo. Make sure to maintain a good balance between spells, creatures, and lands to ensure consistency. Don’t forget to include some removal and card draw to handle different situations. And of course, playtest your deck regularly to fine-tune it. Happy deck building!