1 Feb 2007
You can name either half of a split card, but not both. If you do so, that half (and both halves, if the split card has fuse) can’t be cast. The other half is unaffected.
1 Feb 2007
Voidstone Gargoyle stops activated abilities that are mana abilities from being activated, unlike Pithing Needle.
1 Feb 2007
The named card can be cast face down.
15 Jul 2007
Activated abilities of copies of a spell with that name (such as Lightning Storm) cannot be activated.
8 Jun 2016
Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.