Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s all about finding the right balance between creatures, spells, and lands. Make sure your deck has a clear win condition and enough early game plays to survive the first few turns. Don’t forget to include removal spells to deal with your opponent’s threats. And always playtest your deck to see how it performs against different matchups. Good luck and may your opening hand always have the perfect curve!