If you use throne room to play band of misfits as a duration throne room will stay in play.
Dominion throne room duration.
If you do play one you resolve it completely then play it a second time then play it a third time.
You cannot play other cards in between unless told to by the card such as with king s court itself.
First band of misfits will play the duration but the second time it will be throne room playing the duration and causing it to set up a future ability once more that turn causing the throne room to stay in play that turn.
The throne room is always discarded during clean up if the duration is also discarded or otherwise has left play such as being trashed due to bonfire.
When you use a throne room variant on a duration it stays in play even if multiplying the duration s effect is not meaningful such as throning a tactician or throning an archive with 3 or fewer cards remaining in your deck.
In all other cases the duration will stay in play until the clean up phase of your next turn.
This is similar to throne room but plays the action three times rather than twice.
You completely resolve playing the action the first time before playing it the second time.
Playing an action card from your hand is optional.
If you throne room a throne room which affects a duration the top level throne room does not stay in play and gets cleaned up during the clean up phase of the turn.
Outpost is an action duration card from seaside when played it lets you take an extra turn albeit an extra turn where you draw fewer cards.
The second use of the action card doesn t use up any extra actions you have.