Hey fellow Planeswalkers! When it comes to building a strong deck in Magic: The Gathering Arena, consider your mana curve carefully. Having a good balance of low, mid, and high-cost cards will help ensure you have plays at every stage of the game. Also, don’t forget about card synergy – choose cards that work well together and support your overall strategy. And lastly, always playtest your deck to see how it performs in real matches and make adjustments accordingly. Happy dueling!