New list up. Alchemy. Man oh man Alchemy.
Regarding stealing Coppers with Masquerade, the way I stipulated how opponents behave this may be difficult:This is why I didn't use Masquerade. And I didn't use Thief because it's removed (though maybe that's not a good enough reason). And, does having to pass an Estate from a hand of 3 Estates count as a "decision"?Your opponents play as follows: they never play any cards. They never buy anything. When one of them has to make a decision not covered by these rules, they all resign and the game ends.
However, if you Crown a Thief and your opponents have at most 3 non-treasure cards in their decks you're guaranteed to hit a treasure, if they have one in their draw/discard pile. So long as they only have Copper and have at least one, Cutpurse is guaranteed to provide Thief a target. Once you have stolen everyone's Copper, you can use Masquerade to trade Copper for Estate and use Cutpurse+Thief to steal back the Copper, effectively stealing one estate.
I can get 253 (edit), which I'm sure can be optimized significantly.You can rather easily improve on this by
Kingdom: (Note: I'm intentionally not using Nocturne cards)
Fool's Gold (bane)
Black Market
Cache
Capital
Charm
Contraband
Royal Seal
Treasure Trove
Harem
Hoard
Bank
BM Deck contains (at minimum): Hermit, Lurker, Young Witch, Poor House, Fortune, Philosopher's Stone, Bandit Camp, Tournament, Rocks, Plunder, Talisman, Ill-Gotten Gains, Humble Castle, Crown, Stash, Horn of Plenty, Coin of the Realm, Loan, Quarry, Venture, Counterfeit, Relic, Bazaar, Mining Village
Setup: Deck contains 10 Madmen, a Trusty Steed, a Diadem, a Poor House, 15 Spoils, 11 (edit) Platina, 10 Banks, 10 Capitals, and all but one card of every other kingdom pile. It's a 3-player game, so there are 12 Harems (of which you have 11). You also have one copy of every treasure in the Black Market. Assuming I counted correctly, this is 267 treasures. Additionally, you have a Bazaar and a Mining Village, and you still have a Bandit Camp. (You also probably have other cards in your deck, such as a Tournament, a Province, and the Lurker which you used to get the Hermit back a bunch of times and get more Madmen, but these cards don't matter.)
Start: You have 5 Madmen in hand and 5 on top of your deck
Play 8 Madmen to draw your deck. Play Bazaar, Mining Village (trashing it), and Bandit Camp. Play 9 Black Markets. On the ninth one, play Treasure Trove (gaining the last Copper and Gold), then 5 Capitals, then 8 Banks, then a Fortune, for a total of $258. Play Steed for coins and Silvers (gaining the last Silver). Play Madman to draw the new treasures. Play Poor House.
Your hand contains 253 treasures, assuming I counted correctly. Before you reveal your hand, you had $264. Afterward, you have $11, for a score of 253.
1. on the last Black Market play, buy Mandarin from the Black Market to topdeck all Treasures you played so far and be able to draw them with the last Madman (before that, make sure you played enough Treasures to get at least $293).
2. Replace one of your kingdom treasures with Crown, put Ferry+Inheritance in the kingdom, inherit Crowns. In 3p, this can give you a maximum of 21 Estate-Crowns that are also Treasures.
This puts the maximum score (for 3p) up to 287. (EDIT: Had to remove $1 due to the Crown set aside by Inheritance).
Also, I'm pretty sure you can put a bunch of gainers in the Black Market in order to gain all the remaining Treasures in the supply.
How would split piles work, if you're using the blue backs?
I'm not sure how this is related to night cards. I get the idea that a card changes between two abilities by being exchanged on every play, and that's a cool idea, too. But I don't see the connection to Nights if they indeed are a phase of the same turn. After all you won't discard a bat until the cleanup phase, which happens after Night (probably). Are you thinking about playing Bat in your action phase, changing it to Vampire and playing it again at night, then changeing it back? Because in that case, why would you need two physical cards for that?
I am pretty sure that Donald X did not miss the chance to follow the flavor that vampires or werwolves have: At night they turn into someting different. The bat becomes a vampire, the blacksmith turns into werewolve, the statue changes into the spooky women. Nocturne's flavor text hints into this direction too.Then, why not have them change back after the night. So, Bat could have a Hermit-like clause, "When you discard this from play, return it to the supply and gain a Vampire from the Vampire pile," and Vampire could say "When you discard this from play, return it to the Vampire pile and gain a Bat." Making one-shot Night cards would also somewhat solve the stop-card issue.
