Greater Sandwurm — ruling 1

Once a creature with power 3 or greater has blocked Greater Sandwurm, changing the power of the blocking creature won’t cause Greater Sandwurm to become unblocked.

Greater Sandwurm : règles, fonctionnement et interactions (MTG)

Greater Sandwurm 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 creature can't be blocked by creatures with power 2 or less. Cycling (, Discard this card: Draw a card.)

How it works : Greater Sandwurm

Original English text — Wizards of the Coast / Scryfall

#1April 17, 2020· Wizards of the Coast
Once a creature with power 3 or greater has blocked Greater Sandwurm, changing the power of the blocking creature won’t cause Greater Sandwurm to become unblocked.
No other card is named in this ruling.