Any time you touch my board youre going to lose yours is impactful in a regular EDH environment, and with the card pool and resources you have available in Limited, this sounds even more worrying for your opponents
Obviously this is incomplete, I'll update it as the arc progresses and as I make more cards
Notable that Wizards was very resistant at adding 'Phyrexian' as a creature type, only finally relenting and adding it as late as 2022, almost 30 years since the race's introduction
Aster ultimately defeated him with his "Vison Heroes", though unknown to him, Tragoedia influenced Atticus and stopped him from activating his face-down card
Ive tried it with borders, and it can work if youre really careful, but thats tricky to pull off