Serrated Arrows — ruling 1

The upkeep trigger checks the number of counters at the start of upkeep, and only goes on the stack if there are no arrowhead counters at that time. It will check again on resolution, and will do nothing if you’ve somehow manage to get a new arrowhead counter on the Arrows.

Serrated Arrows : règles, fonctionnement et interactions (MTG)

Serrated Arrows 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

This artifact enters with three arrowhead counters on it. At the beginning of your upkeep, if there are no arrowhead counters on this artifact, sacrifice it. , Remove an arrowhead counter from this artifact: Put a -1/-1 counter on target creature.

How it works : Serrated Arrows

Original English text — Wizards of the Coast / Scryfall

#1August 1, 2008· Wizards of the Coast
The upkeep trigger checks the number of counters at the start of upkeep, and only goes on the stack if there are no arrowhead counters at that time. It will check again on resolution, and will do nothing if you’ve somehow manage to get a new arrowhead counter on the Arrows.
No other card is named in this ruling.