Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, remember to include a good mix of cards that synergize well together. One trick I’ve found useful is to focus on a specific strategy or win condition for your deck, whether it’s aggro, control, or combo. Don’t forget to pay attention to your mana curve to ensure you have a good balance of low and high-cost spells. And always playtest your deck to see how it performs in different matchups. Happy brewing!