Vicious Rumors — ruling 1

As Vicious Rumors resolves, it deals 1 damage to each opponent, then the next opponent in turn order (or, if it’s an opponent’s turn, that opponent) chooses a card in hand without revealing it, then each other opponent in turn order does the same. Then the chosen cards are discarded at the same time. Next, each opponent puts the top card of their library into their graveyard at the same time. Finally, you gain 1 life.

Vicious Rumors — ruling 2

In a Two-Headed Giant game, Vicious Rumors causes the opposing team to lose 2 life, each of those players discards a card and puts the top card of their library into their graveyard, and you gain 1 life.

Vicious Rumors : règles, fonctionnement et interactions (MTG)

Vicious Rumors 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

Vicious Rumors deals 1 damage to each opponent. Each opponent discards a card, then mills a card. You gain 1 life.

How it works : Vicious Rumors

Original English text — Wizards of the Coast / Scryfall

#1October 5, 2018· Wizards of the Coast
As Vicious Rumors resolves, it deals 1 damage to each opponent, then the next opponent in turn order (or, if it’s an opponent’s turn, that opponent) chooses a card in hand without revealing it, then each other opponent in turn order does the same. Then the chosen cards are discarded at the same time. Next, each opponent puts the top card of their library into their graveyard at the same time. Finally, you gain 1 life.
No other card is named in this ruling.
#2October 5, 2018· Wizards of the Coast
In a Two-Headed Giant game, Vicious Rumors causes the opposing team to lose 2 life, each of those players discards a card and puts the top card of their library into their graveyard, and you gain 1 life.
No other card is named in this ruling.