Chancellor of the Dross — 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.

Chancellor of the Dross : règles, fonctionnement et interactions (MTG)

Chancellor of the Dross 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, at the beginning of the first upkeep, each opponent loses 3 life, then you gain life equal to the life lost this way. Flying, lifelink

How it works : Chancellor of the Dross

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.