The combination of Amber and Amethyst creates a lot of potential for interesting deck designs, but if you want to prioritize the Madrigal typal, it's best to hone in on the most important, useful Madrigals, and then fill the deck out with stronger strategies.
However, its the Floodborn cards that I really love
Surrounded by story stars that each contain a fragment of a Disney story, you must use a special tool called an inkcaster to combine these fragments an create a version of a Disney character, known as a glimmer
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you no longer need to worry about an opponent who sweeps it aside with Wrath of God or whatever everybody else does to handle your legendary board, so its easier to rebuild
A 2/3 with deathtouch is great in UB, especially since the game plan against aggro is usually to stabilize early, trade up efficiently, and start generating card advantage