The most obvious example of this is First Edition cards
However, you can solve this problem with Voltaic Key since it allows you to untap Time Vault, take an extra turn, repeat it infinitely, and basically win the game since your opponent will have no chance to play
The collection of vibrant colors deserves to shine through in their original glory, as the scene's epic quality is obvious
If that means playing proxy versions of expensive Reserved List cards, go for it
Or could it be that your style is to take control of the game, cutting off your opponents resources with your well-thought-out strategies
Some cards, like Skullcrack or Questing Beast, explicitly say that damage cant be prevented, and this will override the damage prevention effect from protection