Netter en-Dal — ruling 1

The ability only does something if used before attackers are declared during a turn. If used after the creature is declared as an attacker, nothing happens.

Netter en-Dal : règles, fonctionnement et interactions (MTG)

Netter en-Dal 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

, , Discard a card: Target creature can't attack this turn.

How it works : Netter en-Dal

Original English text — Wizards of the Coast / Scryfall

#1October 4, 2004· Wizards of the Coast
The ability only does something if used before attackers are declared during a turn. If used after the creature is declared as an attacker, nothing happens.
No other card is named in this ruling.