Hey fellow Planeswalkers! When it comes to deck building in Magic: The Gathering Arena, remember that consistency is key. Focus on a specific strategy or combo and build your deck around it. Make sure to include a good balance of spells, creatures, and lands to ensure you can execute your game plan effectively. Don’t forget to pay attention to your mana curve to have the right amount of early game plays and late-game power. And most importantly, playtest your deck regularly to make adjustments and fine-tune it for optimal performance on the battlefield! Good luck, and may your opening hand always be a perfect one.