There won't be any major changes made to the Magic: The Gathering has revealed the latest changes being made to the Game Changers list
The theme decks are "Battalion" (White/Blue), "Going Rogue" (Blue/Black), "Shamanism" (White/Black/Green), and "Warrior's Code" (Red/Green).
This deck ships with all four Fantastic Four members as foil borderless legendary creatures Mister Fantastic, Invisible Woman, Human Torch, and The Thing each with a different payoff for casting noncreature spells
While there are guidelines to keep in mind when deck building (no Game Changers in Exhibition or Core, no mass land denial through Upgraded, etc.), the bracket system is emphatically not just "put your deck into a calculator, get assigned a rank, and be ready to play." I deeply appreciate the tools that websites like Moxfield and Archidekt have put together to give you an overall estimate, and they've done some fantastic iteration to help emphasize intent as wellbut I want to stress that any estimate is just an estimate
The Grim Captain The Grim Captain is a phenomenal threat, the problem being that you have to craft it using Throne of the Grim Captain