Some activated abilities are loyalty abilities. Loyalty abilities follow special rules: A player may activate a loyalty ability of a permanent they control any time they have priority and the stack is empty during a main phase of their turn, but only if no player has previously activated a loyalty ability of that permanent that turn. See rule 606, “Loyalty Abilities.”
May 3, 2019 · War of the Spark
An emblem is neither a card nor a permanent. Emblem isn’t a card type.
January 25, 2019 · Ravnica Allegiance
An emblem is neither a card nor a permanent. Emblem isn't a card type.
February 1, 2014 · Born of the Gods
An emblem is neither a card nor a permanent. Emblem isn’t a card type.
September 30, 2011 · Innistrad
An emblem is neither a card nor a permanent. Emblem isn't a card type.
June 17, 2011 · Commander 2011
An emblem is neither a card nor a permanent. Emblem isn’t a card type.
April 1, 2011 · Duel Decks: Knights vs. Dragons
An emblem is neither a card nor a permanent. Emblem isn't a card type.
October 1, 2010 · Scars of Mirrodin
An emblem is neither a card nor a permanent. Emblem isn’t a card type.
July 16, 2010 · Magic 2011
An emblem is neither a card nor a permanent. Emblem isn't a card type.
February 1, 2010 · Worldwake
Spells and abilities that can have zero or more targets are targeted only if one or more targets have been chosen for them.