Hey fellow Planeswalkers! When it comes to deck-building in Magic: The Gathering Arena, it’s all about finding those sneaky tricks to outsmart your opponents. One neat trick I often use is including cards with Flash in my deck. This allows you to cast spells at instant speed, catching your opponent off guard and disrupting their game plan. Another tip is to incorporate cards with “Enter the Battlefield” effects, giving you immediate value when they hit the board. Remember, the key to a successful deck is versatility and surprise – so keep those tricks up your sleeve and dominate the battlefield!