Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, one key strategy is to focus on a clear win condition. Whether it’s through overwhelming your opponent with creatures, controlling the board with spells, or executing a combo, make sure your deck has a clear path to victory. Don’t forget to include a good balance of cards for early game, mid game, and late game to ensure you’re prepared for any situation. And always playtest your deck to fine-tune it for optimal performance. Good luck and may your opening hand always be in your favor!