Hey fellow Planeswalkers! When it comes to building a solid deck in Magic: The Gathering Arena, it’s crucial to have a good balance of cards. Make sure to include a mix of creatures, spells, and other card types to cover all your bases. Don’t forget to consider your mana curve to ensure you have the right amount of low-cost and high-cost cards. And always keep an eye on the synergy between your cards – sometimes a combo can be more powerful than individual cards on their own. Happy deck-building!