Hey fellow Planeswalkers! When building a deck in Magic: The Gathering Arena, always remember to have a clear strategy in mind. Whether you’re going for an aggro, control, or combo deck, every card should serve a purpose. Make sure to have a good balance between creatures, spells, and lands to ensure consistency. Don’t forget to pay attention to your mana curve to have a smooth progression of plays. And lastly, playtest your deck to fine-tune it and see how it performs in different matchups. Happy brewing!