Energy Cards now auto-generate rather than being pulled from the deck, prize cards have been removed, and there's a smaller deck size in general
They'll appear in an event called The Game Awards After Party , an event about which Wizards of the Coast suggests: "We've never tried anything like this before!" The event will combine new cards from several sets, like Theros: Beyond Death like Elspeth, Sun's Nemesis, and Ashiok, Nightmare Muse, with "iconic cards" the likes of which are legendary to all Magic gamers
I honestly lost count of all the different iterations, so currently I group all the pictures in this thread (both your first post and my post above) as Beta, and the black-and-white ones as Alpha
This eras Dragon deck features Reshiram ROS to navigate R Energy to the right place, Double Dragon Energy to take care of those pesky Energy requirements, and so much more