While these new gold shinies are much higher quality than the ones I remember from the before-times, I'm still not a huge fan of Phantasmal Flames' most elusive card and, while I'm no designer, I can't help but think there's a way to add an extremely rare 'holy grail' card to a set that's more interesting than 'just make it gold, people love gold'
Minions, Medieval, Mega Man Pixel Tactics, Mega Man: The Board Game, Metal Gear Solid: The Board Game, Mettalum, Miaui, Mice and Mystics, Miraris, Miskatonic University: The Restricted Collection, Mission: Red Planet, Mistfall, Moa, Mole Rats in Space, Monad, Monarch, Monster Crunch
Otherwise, put a +1/+1 counter on a Snail you control
2 Imperial Seal (Foil Etched) $252.82 It might be surprising to some to see the foil etched edition of Imperial Seal by the most valuable
It offers a wide array of synergies simply by being a cheap artifact