Secret Lair discussion is running hot after The Zeta Set faced technical trouble, sold out quickly, and unexpectedly pushed several cards into Pauper legality. That combination has players reconsidering access, deck testing, and how they try cards before committing to harder to find copies. In the middle of that conversation, Mythicblackcore gives MTG proxy players another route for casual testing and Commander brewing. If you have been following the queue complaints, scarcity debates, or sudden interest around newly legal cards, this is a timely page to check while everyone is still comparing options and rebuilding lists across the Magic community.