In all honesty, Im having trouble imagining a competitive metagame where the best decks dont have Amethyst as one of their ink colours
1 Persuasion
Gallery and List of Affinity Cards Affinity for Artifacts Assert Authority Blinkmoth Infusion Broodstar Chiss-Goria, Forge Tyrant Chromescale Drake Demonic Junker Don & Raph, Hard Science Emry, Lurker of the Loch Ethersworn Sphinx Frogmite Frogmyr Enforcer Furnace Dragon Furnace Hellkite Gearseeker Serpent Imskir Iron-Eater Into Thin Air Krang, Master Mind Lens Flare Memory Guardian Mycosynth Golem Myr Enforcer Plated Onslaught Quicksilver Behemoth Qumulox Reality Heist Refurbished Familiar Saheeli, the Gifted Sami, Wildcat Captain Scale of Chiss-Goria Slag Strider Sojourner's Companion Somber Hoverguard Steelfin Whale Tezzeret, Master of the Bridge Thoughtcast Thought Monitor Tooth of Chiss-Goria Utrom Monitor Valkyrie Aerial Unit Voyage Home Affinity for Lands Affinity for Equipment One-Off Affinity Abilities Allies at Last Banish to Another Universe Banquet Guests Bartz and Boko Hellspur Brute Junk Winder Pearl-Ear, Imperial Advisor Salt Road Packbeast Sapling Nursery The Dalek Emperor Thrumming Hivepool Tomik, Wielder of Law Travel the Overworld Urza, Chief Artificer Note that there's also Omniclown Colossus with affinity for clowns, but it's an Unfinity card so it's up to you if you want to count it or now
As with vintage booster boxes, older tends to mean scarcer when it comes to sealed product, but there can be more variance when it comes to discussing price (though more recent sets tend to be less expensive to buy sealed product for overall)
#17 Well, it's been (almost precisely) 20 years since WotC made the last Pokmon set if I'm correct
