For the most part, I see this as a new option for self-mill decks in Standard
Organizers would no longer gain much revenue from selling table space to vendors, and the WotC budget for these events would probably result in fewer tournaments for lower prizes
Instant-speed removal is almost always better than sorcery speed removal
Led by Dina, Essence Brewer, you can expect to be creating a ton of pest tokens for the sole purpose of sacrificing them to activate other creature or enchantment abilities and boost the power and toughness of permanents instead
The star of the show is undoubtedly Mega Charizard X, which has 360 HP and a special move called Inferno X, but we'll also get Mega Gengar, Mega Dragonite ex, and plenty of other new ex cards
I admire how dedicated Nick15 has been to his website and his motivation to provide resources for his community all these years later