okay so in Japanese these was one run of the base set with no rarity symbol and another run with the rarity symbol
Its akin to loot reveals in gacha games like Genshin Impact , where you spend money, and then an elaborate animation plays before you get to see which randomized loot drops you managed to pick up
They also have population reports which tell you how many cards have achieved a particular grade (example here)
Mayor of Avabruck is a two-mana Green 1/1 that gives other Human Creatures you control +1/+1, then when transformed becomes Howlpack Alpha, a 3/3 that gives other Werewolf and Wolf Creatures you control +1/+1, and makes a 2/2 Wolf in each of your end steps
Throughout MTGs 30 years of history, this frame has been updated a fair few times to keep Magic feeling fresh
Being a holographic card only adds to its appeal