Elvish Doomsayer — ruling 1

As Elvish Doomsayer's ability resolves, first the next opponent in turn order chooses a card without revealing it, then each other opponent in turn order does the same. Then each chosen card is discarded simultaneously.

Elvish Doomsayer : règles, fonctionnement et interactions (MTG)

Elvish Doomsayer 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

When this creature dies, each opponent discards a card.

How it works : Elvish Doomsayer

Original English text — Wizards of the Coast / Scryfall

#1November 10, 2020· Wizards of the Coast
As Elvish Doomsayer's ability resolves, first the next opponent in turn order chooses a card without revealing it, then each other opponent in turn order does the same. Then each chosen card is discarded simultaneously.
No other card is named in this ruling.