Null Rod
Vintage Masters — rare
Artifact
Null Rod rulings:
2016-06-08: Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
2013-07-01: This effect applies to all activated abilities of artifacts, including mana abilities.
2013-07-01: This effect does not prevent triggered abilities from triggering and it doesn’t stop the effects of static abilities.
2008-04-01: This covers only artifacts that are on the battlefield.