The Amethyst/Steel deck, called Might and Magic, is a showcase for the expansion's new keyword, Resist, as well as the Madam Mim and Merlin package, which is all about bouncing your own characters back to your hand to amplify their effects If you're looking for the starter deck with the more universally useful cards to start building your Rise of the Floodborn collection, you'll probably want to pick up Might and Magic first, as several of its cards will likely see play in the constructed format
To add to this, 4 copies of Kronch wrangler are early game threats which grow stronger with each large creature you cast, and the deck additionally adds copies of Garenbrig Paladin, Challenger Troll, and Beanstalk Giant for extra firepower
Poliwag #62 Pokemon Neo Discovery Keep track of your collection value over time
This card was indirectly referenced as the requirement to use the effect of "Neo Blue-Eyes Ultimate Dragon" during his Duel with Virtual Dark Yugi.