Sphinx of Foresight — ruling 1

A player's "opening hand" is the hand of cards the player has after all players have taken mulligans. If players have any cards in hand that allow actions to be taken with them from a player's opening hand, the starting player takes all such actions first in any order, followed by each other player in turn order. Then the first turn begins.

Sphinx of Foresight — ruling 2

If you reveal two Sphinxes of Foresight from your opening hand, you'll scry 3 twice; you won't scry 6. Any cards you put on top of your library the first time you scry 3 will be part of the second time you scry 3.

Sphinx of Foresight : règles, fonctionnement et interactions (MTG)

Sphinx of Foresight 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

You may reveal this card from your opening hand. If you do, scry 3 at the beginning of your first upkeep. Flying At the beginning of your upkeep, scry 1.

How it works : Sphinx of Foresight

Original English text — Wizards of the Coast / Scryfall

#1March 19, 2021· Wizards of the Coast
A player's "opening hand" is the hand of cards the player has after all players have taken mulligans. If players have any cards in hand that allow actions to be taken with them from a player's opening hand, the starting player takes all such actions first in any order, followed by each other player in turn order. Then the first turn begins.
No other card is named in this ruling.
#2January 25, 2019· Wizards of the Coast
If you reveal two Sphinxes of Foresight from your opening hand, you'll scry 3 twice; you won't scry 6. Any cards you put on top of your library the first time you scry 3 will be part of the second time you scry 3.
No other card is named in this ruling.