Ignoble Hierarch — ruling 1

A creature attacks alone if it's the only creature declared as an attacker during the declare attackers step (including creatures controlled by your teammates, if applicable). For example, exalted won't trigger if you attack with multiple creatures and all but one of them are removed from combat.

Ignoble Hierarch : règles, fonctionnement et interactions (MTG)

Ignoble Hierarch 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

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) : Add , , or .

How it works : Ignoble Hierarch

Original English text — Wizards of the Coast / Scryfall

#1June 18, 2021· Wizards of the Coast
A creature attacks alone if it's the only creature declared as an attacker during the declare attackers step (including creatures controlled by your teammates, if applicable). For example, exalted won't trigger if you attack with multiple creatures and all but one of them are removed from combat.
No other card is named in this ruling.