The three-yearly cycle had become so normal that the card game was built around it, releasing sets themed around the new monsters and mechanics added to each new gaming entry, so what would it do when that was taken away
Or you can use it to copy dorks you made too, but do note that this will only copy what was made that turn, so it's often worse than populate since if your token you want to copy didn't enter that turn you'd be stuck
Number 169 Language English Legal Formats Brawl, Commander, Competitive Brawl, Legacy, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Banned Formats Historic, Modern, Pioneer Rulings (10/4/2019) The earliest opportunity you have to cast Once Upon a Time is during the first player's upkeep, before that player can play a land.
Anime fans who dont collect cards are covered, too
However, it took much longer for the progenitor of all dragons, the titanic Ur-Dragon, to actually appear on a Magic card