Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s essential to have a clear strategy in mind. One tip I swear by is focusing on synergy between your cards. Make sure your cards work well together and have a common goal. Additionally, don’t forget to balance your mana curve to ensure you have the right mix of spells to play at every stage of the game. Lastly, always keep an eye on the meta and be ready to tweak your deck accordingly. Happy gaming!