Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, one important tip is to focus on a clear strategy. Whether you’re going for an aggro, control, or combo deck, make sure every card choice supports your main game plan. Also, don’t forget about your mana curve – having a good balance of low and high-cost spells will help you play more consistently. And finally, always playtest your deck to see how it performs and make adjustments accordingly. Good luck out there on the digital battlefield!