Hey fellow Planeswalkers! When it comes to deck building in Magic: The Gathering Arena, one important tip is to focus on a clear strategy. Whether you’re building an aggro, control, or combo deck, make sure every card serves your overall game plan. Also, don’t forget to balance your mana curve to ensure you have plays at every stage of the game. And lastly, keep testing and tweaking your deck to see what works best in different matchups. Happy brewing!