Hey fellow Planeswalkers! When building a deck in Magic: The Gathering Arena, always start with a clear strategy in mind. Whether you’re going for an aggro, control, or combo deck, make sure every card serves a purpose. Don’t forget to maintain a good balance between creatures, spells, and lands. Playtest your deck to see how it performs and be open to making adjustments. And most importantly, have fun experimenting with different cards and strategies to find what works best for you! Good luck out there on the battlefield!