There are some interesting staples here, with a lot more options from Fabled than the Amber and Sapphire deck, especially the options from A Goofy Movie
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However, they do typically contain several very strong cards, and these cards can then be used to upgrade your deck later
Now fixtures of Sapphire and Amethyst decks, the combos you can pull off with the right moves are dizzying: Goat Merlin on the board for one lore
I could list every new card I love - like Alice, Growing Girl, who lends the Support keyword to your other characters and gains four lore when you reach ten strength, or Sisu, Divine Water Dragon, who allows you to draw a new card every time you quest - but in general all of the new cards in Rise of the Floodborn feel like a shift in power and ability