Hey fellow Planeswalkers! When it comes to building a solid deck in Magic: The Gathering Arena, it’s crucial to pay attention to your card choices. Make sure to include a good balance of creatures, spells, and lands to ensure you have options at every stage of the game. Don’t forget to consider the mana curve – having a variety of low, mid, and high-cost cards will help you deal with different situations. And always keep in mind the synergy between your cards, building combos that can give you the upper hand in a match. Happy deck-building!