Whispering Specter — ruling 1

You choose whether or not to sacrifice Whispering Specter, and the number of poison counters the player has is counted, when the triggered ability resolves.

Whispering Specter : règles, fonctionnement et interactions (MTG)

Whispering Specter 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

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) Whenever this creature deals combat damage to a player, you may sacrifice it. If you do, that player discards a card for each poison counter they have.

How it works : Whispering Specter

Original English text — Wizards of the Coast / Scryfall

#1June 1, 2011· Wizards of the Coast
You choose whether or not to sacrifice Whispering Specter, and the number of poison counters the player has is counted, when the triggered ability resolves.
Card named in this ruling
Poison Counter