Purple Worm — ruling 1

Purple Worm's first ability will never reduce its cost more than {2}, no matter how many creatures died this turn.

Purple Worm — ruling 2

If a player casts a spell that targets multiple permanents their opponent controls with ward, each of those ward abilities will trigger. If that player doesn't pay for all of them, the spell will be countered.

Purple Worm : règles, fonctionnement et interactions (MTG)

Purple Worm 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 spell costs less to cast if a creature died this turn. Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

How it works : Purple Worm

Original English text — Wizards of the Coast / Scryfall

#1July 23, 2021· Wizards of the Coast
Purple Worm's first ability will never reduce its cost more than , no matter how many creatures died this turn.
No other card is named in this ruling.
#2July 23, 2021· Wizards of the Coast
If a player casts a spell that targets multiple permanents their opponent controls with ward, each of those ward abilities will trigger. If that player doesn't pay for all of them, the spell will be countered.
No other card is named in this ruling.