Essentially, the longer the battle goes on, the more powerful your Monsters can become
The huge influx of Pirates with the release of Ixalan gave me an excuse to try out this concept without relying on Xenograft or Conspiracy
This bundle includes all four Magic: The Gathering-FINAL FANTASY decks, each featuring cards themed around a different FINAL FANTASY game-Revival Trance (FINAL FANTASY VI), Limit Break (FINAL FANTASY VII), Counter Blitz (FINAL FANTASY X), and Scions & Spellcraft (FINAL FANTASY XIV)
As you can see, these cards show the same scene in different seasons, with both being Mountain cards, despite having a very different colour scheme
If you think about Legacy, the card that defines the format is Brainstormanother one-mana cantrip that shows up in a ton of different decks and allows players to see most of their deck over the course of the game in conjunction with fetch lands
If you want to play with the Standard rotation and rules from 1999, you absolutely can