Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, one key strategy is to focus on a clear game plan. Whether you’re going for an aggro, control, or combo deck, make sure every card choice serves your overall strategy. Don’t forget about the mana curve – having a good balance of low to high-cost spells ensures you can play something every turn. Lastly, always playtest your deck and make adjustments based on how it performs. Happy brewing!