Puncture Blast — ruling 1

This is the only instant or sorcery spell that has wither. It works like anything else with wither: If it deals damage to a creature, the damage results in -1/-1 counters; if it deals damage to a player or planeswalker, the damage behaves normally.

Puncture Blast : règles, fonctionnement et interactions (MTG)

Puncture Blast 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

Wither (This deals damage to creatures in the form of -1/-1 counters.) Puncture Blast deals 3 damage to any target.

How it works : Puncture Blast

Original English text — Wizards of the Coast / Scryfall

#1August 1, 2008· Wizards of the Coast
This is the only instant or sorcery spell that has wither. It works like anything else with wither: If it deals damage to a creature, the damage results in -1/-1 counters; if it deals damage to a player or planeswalker, the damage behaves normally.
No other card is named in this ruling.