Hey fellow Planeswalkers! When building your deck in MTG Arena, always keep your mana curve in mind. Having a good mix of low-cost and high-cost spells ensures you have plays at every stage of the game. Don’t forget to include cards that can deal with different types of threats, like removal spells and counterspells. And most importantly, playtest your deck to see how it performs and make adjustments accordingly. Good luck and may your opening hand always have the perfect balance of lands and spells!