Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, I always start by identifying a clear win condition. Whether it’s through overwhelming with creatures, controlling the board, or burning your opponent, having a focused strategy is key. Make sure to include a good balance of cards that support your win condition and provide card advantage. Don’t forget to include some removal spells and ways to deal with your opponent’s threats. And finally, always playtest your deck to fine-tune it and see how it performs against different matchups. Happy brewing!