Once Upon a Time — ruling 1

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.

Once Upon a Time : règles, fonctionnement et interactions (MTG)

Once Upon a Time is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

If this spell is the first spell you've cast this game, you may cast it without paying its mana cost. Look at the top five cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

How it works : Once Upon a Time

Original English text — Wizards of the Coast / Scryfall

#1October 4, 2019· Wizards of the Coast
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.
No other card is named in this ruling.