Lilting Refrain — ruling 1

Adding a counter is optional. If you forget to add one during your upkeep, you cannot back up and add one later.

Lilting Refrain : règles, fonctionnement et interactions (MTG)

Lilting Refrain 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

At the beginning of your upkeep, you may put a verse counter on this enchantment. Sacrifice this enchantment: Counter target spell unless its controller pays , where X is the number of verse counters on this enchantment.

How it works : Lilting Refrain

Original English text — Wizards of the Coast / Scryfall

#1October 4, 2004· Wizards of the Coast
Adding a counter is optional. If you forget to add one during your upkeep, you cannot back up and add one later.
No other card is named in this ruling.