To set aside a card is to place it on the table apart from your play area; such cards are not discarded during Clean-up, and are not considered to be "in play" for any purpose. This can be temporary, or permanent; in either case, if the game ends while you have cards set aside, they are returned to your deck before scores are calculated. Often, cards that set aside themselves and/or other cards come with mats to help mark the set aside area as special. Setting aside can be used as a way to mark cards as not required for the effect of an Action or Treasure being resolved, as a way to save cards for later use, or as a way to permanently remove a card from your deck without trashing it. Duration cards that are not discarded during Clean-up are not considered set aside; they are still in play.
 Official rules
- "Set aside a card" - Put the card on the table, outside of the play area.
- Set aside cards are not "in play."
- Set aside cards are face up unless otherwise specified.
- A card that sets a card aside will say when to move it somewhere else.
List of abilities that set cards aside, sorted by how long the set-aside cards remain set aside.
- until end of execution
- until start of Clean-up
- Encampment (self)
- until end of turn
- until start of next turn
- until end of game