Hey fellow Planeswalkers! When it comes to building a killer deck in Magic: The Gathering Arena, it’s all about finding the perfect balance of cards. Remember, a mix of creatures, spells, and support cards is key to success. Look for cards that synergize well with each other to create powerful combos. Don’t forget to include some removal spells to deal with pesky threats from your opponent. And always keep an eye on your mana curve to ensure you have a smooth flow of plays throughout the game. Happy deck-building!