Mindstorm Crown — ruling 1

Mindstorm Crown’s ability doesn’t have an “intervening ‘if’ clause.” It always goes onto the stack at the start of your upkeep.

Mindstorm Crown — ruling 2

Mindstorm Crown cares about the number of cards in your hand at the time the turn started, not as the ability resolves. So if you have more than one Crown on the battlefield and no cards in your hand at the start of the turn, you draw a card for each Crown.

Mindstorm Crown : règles, fonctionnement et interactions (MTG)

Mindstorm Crown 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

At the beginning of your upkeep, draw a card if you had no cards in hand at the beginning of this turn. If you had a card in hand, this artifact deals 1 damage to you.

How it works : Mindstorm Crown

Original English text — Wizards of the Coast / Scryfall

#1December 1, 2004· Wizards of the Coast
Mindstorm Crown’s ability doesn’t have an “intervening ‘if’ clause.” It always goes onto the stack at the start of your upkeep.
No other card is named in this ruling.
#2December 1, 2004· Wizards of the Coast
Mindstorm Crown cares about the number of cards in your hand at the time the turn started, not as the ability resolves. So if you have more than one Crown on the battlefield and no cards in your hand at the start of the turn, you draw a card for each Crown.
No other card is named in this ruling.