mtg booster box 2021 m21 collector Amazon.com: Magic: The Gathering Core Set (M21) Collector Booster legal text Magic the Gathering - Core

Inclusion of cards from The List doesn't impact what formats the card is legal in

Perhaps the most notable part of this card is the flavor text, which seems to imply that Hades is being setup as the big bad of future sets

The six magical inks Amber, Amethyst, Emerald, Ruby, Sapphire, and Steel, were released in a mixed-up chaotic form, resulting in a mysterious flood which damaged the Great Illuminary. When storyborn or dreamborn glimmers encounter this mixed ink, they surge with a power that changes them, transforming them into floodborn glimmers

Given, of course, that she's exerted and able to be challenged

Ravensburger will be holding a lottery system to determine who gets the opportunity to buy products from the re-released set, which will hopefully ensure the booster boxes end up in the hands of people who want them and not just scalpers and resellers