Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, I always start by picking a theme or strategy I want to focus on. Whether it’s aggro, control, or combo, having a clear game plan is key. Make sure to have a good balance between spells, creatures, and lands in your deck to ensure consistency. Also, don’t forget to include cards that can answer threats or disrupt your opponent’s strategy. And always playtest your deck to see how it performs and make adjustments accordingly. Remember, the best decks are often the ones that are finely tuned and adaptable. Good luck brewing!