Note that I haven't read the other replies yet; so don't know if some of this has already been covered.
As a whole set, I feel like there's too many different things. It combines a lot of things from Nocturne as well as Menagerie, but also some Guilds and Renaissance mechanics. Between Overpay, Heirlooms, Night, Ways, Horses, Villagers, Coffers, VP Tokens, Exile, Events, Split Piles, Reserves, Debt, Projects, Hexes, Landmarks, Pile Tokens, and Durations (to be fair it seems Durations are now a core mechanic)... it just seems like way too many mechanics to fit into one set. Looks like 35 separate Kingdom Piles? That's a lot.
Most of the specific cards seem neat and fine. Seems like a lot of them provide difficult choices about how many to buy, etc.
Wanderer might be simpler though very slightly weaker if it were "choose one" with both options mandatory. It's a bit weird that now it gives you the choice to effectively just trash a Copper from the supply.
Money Trick seems a bit complicated in the reaction wording. I wonder if the "if it's a Money Trick" part is even needed.... was that added just to prevent an infinite loop with discarding a Money Trick into an empty deck? Either way this might be as strong as Peddler/Poacher; which would make it too cheap.
Amazon - I'm not sure if "gain a Horse to your Hand" is significantly different enough from "+2 cards"... of course when combined with things like Horse Lady, it is, and maybe that was the intent. I'm also not sure about Overpay on a
card... the official Overpay cards don't exceed
. At
, you likely aren't going to be using the Overpay very often at all; though it is a nice bonus when you hit
.
Fruit Mix wording; Donald is planning to update Treasures to not longer use "When you play this", and you don't have that on Fruits either. And instead of "worth", it should just be "+
"l; like an action would be. I believe treasures like Bank will be updated to do that as well.
Bride Wait might be the Feast we should have had all along.
Calmness is a bit weird; it's obvious what the +1 Card Token does, but "whenever you want" is weird timing. It's also rare that you are going to hold onto it very long; so maybe instead during cleanup draw 1 extra card for your next turn.
Birth of Venus might be too similar to Donate.
Way of the Mermaid is strictly better than Pig; not that there are necessarily rules about avoiding strictly better ways, but it makes sense to try and do so.
Way of the Sphinx is probably too good (and strictly better than Pig); Wishing Well already exists as a
card, this just makes any action you want into a Wishing Well.
I don't understand Harpy, Medusa, and She-Wolf... why have a separate card? Why not just have the text on the Way? It would be like if Way of the Sphinx said "Play a Wishing Well, leaving it there". *EDIT* Ah, I see from the other comments how it's different because you are playing an Attack Card; which allows for reactions.
Phoenix might be too strong with some one-shots like Pillage.
Land Grant is very cool; I like it a lot. Don't have an opinion about the balance of the Landmarks, and the cost might be too high, but it's a great idea.
Lots of cards I didn't mention; for the most part even though I can understand them easily, I can't tell if they are balanced for their cost. Which is a good thing I think; just means they need playtesting to determine if they're good.