The second use of the action card doesn t use up any extra actions you have.
Multiple throne room dominion.
When the 1 card token is on tactician using a throne room variant on it becomes meaningful as it provides you a card to discard each time tactician is played again.
Duration is a card type that was introduced in seaside and revisited in later sets starting with adventures duration cards are cards which usually have an effect on the turn after they are played.
A duration is not discarded from play until the cleanup phase of the last turn on which it does something usually the turn after the turn on which it is played.
Additional rules from the rulebook you pick another action card in your hand play it and play it again.
You completely resolve playing the action the first time before playing it the second time.
Original article by theory.
Status as of may 2016.
I won t be updating this faq anymore since i improved and expanded it into a document called complete rules for dominion and all its expansions which is now more complete anyone else can edit this faq of course.
Tactician highlights the general dominion principle that one good thing is usually better than two mediocre things.
This faq lays out all the rules of dominion pertaining to all released expansions including adventures.
If you throne room a throne room you play an action doing it twice and then play another action and do it twice.
It allows you to play another action card from your hand twice as if you had a village and two copies of that action card.
Complete and all encompassing dominion faq.