Null Rod | Magic: The Gathering
Formats Null Rod is Legal in
Official Oracle Text for Null Rod
Hanna: "No—it does nothing."
Official Rulings for Null Rod
7/1/2013 : Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities; they have colons in their reminder text.
7/1/2013 : This effect applies to all activated abilities of artifacts, including mana abilities.
7/1/2013 : This effect does not prevent triggered abilities from triggering and it doesn't stop the effects of static abilities.