So are the 10 new piles known when the game starts or secret until the prophecy triggers?
Secret, the prophecy is a when-then situation.
Wow, this will make for a very unpredictable game. I both love it and fear it at the same time.
And how is setup for those cards handled? For example, if Baker is in the second set of piles, do everyone get a Coffer at the start of the game or do we have an extra Setup phase in the middle of someone's turn?
The new setup is done when it needs to be done.
At that moment you handle the new setup and e.g. every player gets a coffer for Baker.
Okay, so am I interpreting this correct?
- Events and Landmarks are not affected (neither removed or any new ones added), which also means the set aside card for Way of the Mouse is unaffected.
- "Setup" shall de treated as a trigger of putting something on the table, not as a phase at the start of the game that can be repeated by Divine Wind. I.e. the setup for the existing Events and Landmarks such as Tax and Defiled Shrine won't be repeated to put tokens on the new piles, and Arena won't get additional tokens on itself.
- Traits are removed with the old piles and none of the new piles will have any Traits.
- Traits for the old piles, continue to apply to those cards after the pile has been removed.
- If Young Witch was in the first piles, the Bane card is also removed (since it is a kingdom pile).
- If Young Witch is in the new piles, an 11:th kingdom pile for the Bane cards is also added.
- If Black Market was in the first piles, the market deck stays and is still available as it isn't a kingdom pile.
- If Black Market is in the second set of piles, a market deck is set up (and any setup for those cards are also performed).
- If Ferryman was in the first piles, its extra pile stays because it isn't in the kingdom. The extra cards can still be given out if a Ferryman is gained from the Trash.
- If Trade Route was in the first piles, the coin tokens on Estate, Dutchy, Province, and (if used) Colony stay and can still be moved to the Trade Route mat.
- If the old piles contain Looter(s), the Ruins pile stays as it isn't a kingdom pile.
- If both the old and new piles contain Looter(s), the existing Ruins pile is unaffected, i.e. it isn't refilled.
- The usage of Platinum and Colony is not affected, i.e. they stay if initially used and are never added, regardless of whether the first card in the second set is from Prosperity.
- The usage of Heirlooms and Shelters are not affected (they are neither added nor removed).
- If there were Liasons in both the first set and the new piles, the initially selected Ally is kept and no new Favor tokens are given out (except for the 4 from Importer if present in the new piles).
- Only if there were no Liasons in the first set of piles and there are in the second set does everyone gets a Favor, i.e. this is tied to when an Ally is added.
- Any "in games using this" effects from the first piles continue to apply regardless of whether any of those cards have been gained. (Otherwise, when Charlatan is removed, a Curse currently in play would suddenly stop being a Treasure.)
- It is not possible to return any of the cards from the old piles to its pile. (Same as for cards from the market deck or non-pile cards like Heirlooms.)
(I realize that there has been several of posts made while I was writing this so it's possible that something in my list has already been stated to be false.)