Stone Catapult — ruling 1

If a turn has multiple combat phases, the ability can only be activated before the beginning of the declare attackers step of the first combat phase in that turn.

Stone Catapult : règles, fonctionnement et interactions (MTG)

Stone Catapult 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

: Destroy target tapped nonblack creature. Activate only during your turn, before attackers are declared.

How it works : Stone Catapult

Original English text — Wizards of the Coast / Scryfall

#1September 20, 2013· Wizards of the Coast
If a turn has multiple combat phases, the ability can only be activated before the beginning of the declare attackers step of the first combat phase in that turn.
No other card is named in this ruling.