In Oketra's Name — ruling 1

The set of creatures affected by In Oketra’s Name and how those creatures are affected is locked in as In Oketra’s Name resolves. Creatures you begin to control later in the turn won’t get any bonus, and creatures that start or stop being Zombies later in the turn won’t have their bonus changed.

In Oketra's Name : règles, fonctionnement et interactions (MTG)

In Oketra's Name 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

Zombies you control get +2/+1 until end of turn. Other creatures you control get +1/+1 until end of turn.

How it works : In Oketra's Name

Original English text — Wizards of the Coast / Scryfall

#1April 18, 2017· Wizards of the Coast
The set of creatures affected by In Oketra’s Name and how those creatures are affected is locked in as In Oketra’s Name resolves. Creatures you begin to control later in the turn won’t get any bonus, and creatures that start or stop being Zombies later in the turn won’t have their bonus changed.
No other card is named in this ruling.