Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s crucial to have a solid strategy in mind. Start by identifying the core theme of your deck – whether it’s aggro, control, midrange, or combo. Make sure your cards work well together towards a common goal. Don’t forget to include a good balance of creatures, spells, and lands to ensure consistency. Test your deck against different opponents to fine-tune it for maximum efficiency. Remember, adapting your strategy based on the meta is key to staying ahead in the game! Good luck and may your opening hand always be favorable!