Jegantha, the Wellspring is a versatile card that shows up in multiple types of Constructed decks thanks to the vast majority of cards that have only one mana symbol in their cost
The other deck is Might and Magic, an Amethyst/Steel deck that features RotFs new keyword, Resist, and its major new deck building mechanic, bouncing your own cards back into your hand
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It draws cards, it's an instant, it fills the graveyard, and it provides some great filtering
The Pokmon Company never publishes official pull rate figures, because if it did then some of the hopelessly cardboard-enamoured masses would move on
The biggest upcoming change, which is technically already in effect, is that 2023 will have no rotation