Planar Disruption — ruling 1

Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities and will have colons in their reminder text. Notably, loyalty abilities of planeswalkers are activated abilities.

Planar Disruption : règles, fonctionnement et interactions (MTG)

Planar Disruption 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

Enchant artifact, creature, or planeswalker Enchanted permanent can't attack or block, and its activated abilities can't be activated.

How it works : Planar Disruption

Original English text — Wizards of the Coast / Scryfall

#1February 4, 2023· Wizards of the Coast
Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities and will have colons in their reminder text. Notably, loyalty abilities of planeswalkers are activated abilities.
No other card is named in this ruling.