new card submission
"Exile one copy of any trashed cards" needs clarification. Are you Exiling the actual card from the Trash? Are you Exiling a copy of it from the Supply (if there are any left)? Is the "one copy" meant to say that if there are 3 Estates you only get 1? Or is "one copy" meant to help clarify my earlier question, that it's actually a copy from the Supply rather than the actual card from the Trash - in which case, you should probably say "a copy"?
I think +2 Cards, and a forced trash for all other players (which, granted, may sometimes help them, but later in the game may also be quite harmful) with the option to Exile is probably already strong enough for $4. I don't think it needs to let you play the Exiled card (let alone twice!) That option for playing the card makes it very swingy and situational.
As with similar attacks, this can get very powerful in multi-player games (e.g. Pirate Ship more likely to succeed, Thief getting more cards), but that's part of the game. But imagine someone having to choose between trashing a Silver or Duchy near the end of the game? They either give you $4 this turn, or a swing of 6 points (they trash 3 points, you Exile 3 points). If you do want to allow playing the Exiled card, I think once is plenty, and even then may require the card to go up to $5 instead of $4.
On another note - with Emulators (such as Command-type), they generally do not allow the play of Duration cards, for tracking issues. I think that would be wise to include here, if you keep the option to play the Exiled card. Especially tracking if Duration cards can be played twice would become troublesome if more than one were played (in 3+ player games), as the Throne Room (or variant) is usually set aside with it, but you can't easily do this with multiple cards.
Could playing a Night card during your Action phase have any unintended consequences?
Aside from the fact that I don't think this card needs to even Play cards that were Exiled, yes, I think there could be some consequences. Looking through the official Night cards - if we remove the ability to play Duration cards, I think that fixes some of the issues. Here are my comments on how they are all effected:
- Guardian - not too bad, but just need to remember that even when in Exile, is it played or just in Exile?
- Monastery - in most cases, this would serve no purpose when played at this time
- Changeling - this will usually not allow you to gain a copy of a Treasure anymore by playing it this way, but that's the way it is
- Ghost Town, Cobbler, Den of Sin, Ghost - the only concern is tracking that these have been played, but remains in Exile instead of in Play
- Night Watchman - this card may actually be stronger by allowing it to be played with Spoiled Heir
- Devil's Workshop - this card is definitely stronger, as it will usually allow you to gain a Gold, then later you can still Buy a card this turn (normally, you have to choose not to Buy a card in order to gain the Gold)
- Exorcist, Bat - functionally, I don't think these card are much different if played now in the Action phase instead of the Night phase, unless Fortress is in the Kingdom
- Crypt - this card is practically useless when played in your Action phase, unless Storyteller or Black Market are in the Kingdom and even then it's weak
- Vampire - in general, this probably doesn't affect much, unless you can still draw cards and have a near-empty Deck, then drawing the card you just gained with Vampire can be quite powerful, as well as possibly being able to draw your newly Exchanged Bat and getting it back to a Vampire the same turn
- Werewolf - would you get a choice between playing the Action-ability or the Night-ability, since you can play either Type with Spoiled Heir, or would it default to only getting the +3 Cards since it is technically the Action phase?
- Raider - this would force other players to Discard one of the Action cards you have in play, rather than potentially having an option to discard only a Copper if you would have played one of those (alternatively, it also doesn't give you the option of only playing Silver and Gold and hoping people have to discard one of those or a Raider)