Graceful Adept — ruling 1

If multiple effects modify your hand size, apply them in timestamp order. For example, if you put Null Profusion (an enchantment that says your maximum hand size is two) onto the battlefield and then put Graceful Adept onto the battlefield, you'll have no maximum hand size. However, if those permanents entered in the opposite order, your maximum hand size would be two.

Graceful Adept : règles, fonctionnement et interactions (MTG)

Graceful Adept 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 have no maximum hand size.

How it works : Graceful Adept

Original English text — Wizards of the Coast / Scryfall

#1October 1, 2009· Wizards of the Coast
If multiple effects modify your hand size, apply them in timestamp order. For example, if you put Null Profusion (an enchantment that says your maximum hand size is two) onto the battlefield and then put Graceful Adept onto the battlefield, you'll have no maximum hand size. However, if those permanents entered in the opposite order, your maximum hand size would be two.
No other card is named in this ruling.