Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
01-07-2013
wotc
This effect does not prevent triggered abilities from triggering and it doesn’t stop the effects of static abilities.
01-07-2013
wotc
This effect applies to all activated abilities of artifacts, including mana abilities.
01-04-2008
wotc
This covers only artifacts that are on the battlefield.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.