- You can play an event out of the discard pile using effects that allow you to play events out of your discard pile if you only have 1 event by the same title in your discard pile. (Ex: Annals of Castle Black, Emissary of the Hightower).
- You cannot play an event from shadows if you have a copy of that event in your discard pile.
- Triggering an ability on event does not count as playing the event. (Ex: A Dragon is no Slave)