If you suspect a card or cards you own may be counterfeit, there are a few resources available to you to make it easier to verify that your card is a counterfeit, including the section on Identifying Fake Pokmon Cards in this deck building guide and the videos below
The highest rarities include Secret Ultra Rares like Ultra Necrozma-GX and Tapu Lele-GX, which appear in a golden full-art negative design
The upkeep cost of just one blue mana is trivial to pay
But having Shock, Raise Dead, Rampant Growth, or Preordain stapled to a Scry 2 when I am looking to sculpt my draws later offers more card advantage than most players would have known what to do with in 1993
Instead, players seem to have steered away from them, perhaps preferring other lifegaining methods
Its also a solid card for prowess decks, especially if you want players to take Monastery Mentor seriously