Its high price is attributed to its rarity, quality preservation, and the fact that its one of only four PSA graded examples of this card, with this particular one boasting a perfect PSA 10 rating
Foretell 8.1/10$0.35 Glorious Protector Creature Angel Cleric 3/4 Flash Flying When this creature enters, you may exile any number of non-Angel creatures you control until this creature leaves the battlefield
Vintage kept its restricted list, because some people wanted to play with powerful cards (and also because Type 1.5, aka legacy had started to take root, which, at the time, was just vintage with the restricted list renamed "banned list"), but in standard, you already couldn't play with all your cards, so there really wasn't any good reason to keep a restricted list
(2) If your "/Assault Mode" monster or "Red Dragon Archfiend" attacks, at the end of the Damage Step: You can banish this card from your GY
It has continued to appear in subsequent generations, maintaining a presence in regions like Johto, Alola, and Galar