Well I have some free time so I guess I'll address a few things. Long post incoming!
Mountain village- The 5 ice tokens change seems to be focused on the coin ability giving it more self sustain and maybe to nerf buying multiple copies. Mountain village's bazaar effect seems most useful when spammed. However I can see 5 ice tokens making this card frustrating to buy when it's not early game.
So Mountain Village is a village instead of say some kind of payload card for a reason, the idea is that you have to buy them earlier than you would normally buy a village as this hopefully creates a unique and interesting play experience. The reward for having a frozen card then has the function of making them not so sad to buy later on too. With just 3 tokens it wasn't really delayed at all at the time you would usually consider buying a village so I upped the number of tokens to try and fix it. This also had the nice added effect of making the Coin token easier to get.
Pioneer- Seems like a worse peddler, since you are limited to 7 copper(without gaining more) really makes this card not that spamable which is the best use of peddler. Making this compete with cards like market and bazaar which is really rough. The free coin token is nice for later turns and for on gain effects but is a overall weird choice for a on gain bonus for me.
I mean there's only 10 in the pile y'know, getting 7 Pioneers seems rare. It's significantly better than Peddler until you trash Coppers - it's more like an Apothecary-lite, drawing the Coppers increases your handsize which is often important and increases cycling which is very important. It also removes Coppers from your deck so your other draw can pick up better cards. It's an early-mid game accelerator where as Peddler is a mid-late game payload card.
Sleigh- This is such a strong early game card. Not a huge fan of the RNG factor. Seems a little bit similar to Chariot Race design except Sleigh works better with lower cost cards and is more controllable RNG. Sleight might be too good for 3.
It's pretty much a worse Wishing Well as an opening, I don't really understand the RNG factor comment either. It seems worse than Wishing Well to me in general but I have been called Luckbag on numerous occasions, so maybe Wishing Well is worse for other people.
Barbarian- I think it's attack is too dependent on having other coin token gainers. 4 coin tokens is rough to get in one turn with just this card, and keeping 3 coin tokens turn to turn to trigger this attack seems weak.
The trick is that "+$1 take a Coin token" is decent anyway, probably a reasonable $3 cost. The attack is painful but can be hard to set up - kinda like Legionary.
Cargo Ship- Seems much slower and weaker than Glacier and looks weaker than remodel to me. Maybe I am missing something.
It has the magic words "trash a card" although I might try this at $4. I suspect that's too good in the opening though, maybe a bonus for trashing Coppers would be better.
Okay now onto trivalknot:
The new cards are great. I think it goes to show that if you can come up with the brilliant ice token mechanic, you can also come up with good cards that don't use it.
Campsite - Sounds like a very good village, competitive with Port or Worker's Village. I don't think $2 or $3 makes a big difference. Since the central concept is "a village that topdecks itself" rather than "village that makes you sacrifice $2", you could experiment with other conditions. Like, what if it's a village that behaves just like Treasury. Or maybe it topdecks itself only if you don't buy actions LOL.
Thanks for the kind words
Campsite is quite strong, but $2 is a real cost so it isn't an automatic decision, or maybe it is and I've been playing it wrong! It also rewards deck tracking but not in an annoying way in my opinion, which I enjoy but maybe other people don't? It's certainly got nothing on Minstrel or Port for sure though.
Pioneer - I think this looks too strong to cost $4, especially with the on-gain bonus. My main complaint about this is it seems a lot slower than Peddler, without being sufficiently different to justify it.
Ah I meant $4 without the Coin token, I didn't make that clear but yeah I figured it would be on the high end of $4's - not Ironmonger level but still very good, that's why I put it at $5 with the Coin token thing. Hmmm it's certainly not as bad in that regard as Hunting Party is compared to Lab, but Hunting Party is miserable IRL so I'll have to think on it. I won't repeat myself about the Peddler comparison.
Sleigh - It's certainly very good in the early game, when most of your deck is copper. And if you get 6+, it seems pretty strong, maybe on par with Herald. I'm a bit worried that it would lead to a monolithic strategy--Herald wants to add terminal actions, but this card doesn't want you to add expensive cards.
At the end of the day it's still just a conditional Lab so it'll never be a (good) strategy by itself.
Hunter - Funny thing about this is that you have to decide whether to discard an action or treasure before drawing 2 cards. Looks fairly strong even with just the victory card part.
I didn't think of that actually... would people like it more if the victory part was first? The victory part is where a lot of the strength comes from, it would be too similar to Shepherd without the other stuff though - I made this before Shepherd was released mind.
Barbarian - This doesn't look that strong, but here you say it's stronger than it looks. Well color me surprised. It looks worse than Butcher, but then Butcher is amazeballs, and Tragic Hero demonstrates that if you make a nerfed version of an amazing card it can come out pretty decent. The attack could hurt, but opponents can see it coming a long ways, and can prepare for it by buying provinces.
Worse than the best $5 in dominion is a fine place to be
. Tragic Hero is a really strong Gold gainer guys - comparing it to Margrave is a mistake (why am I derailing my own topic?) If I make my opponent buy Provinces prematurely then I'm very happy, Barbarian did his job!
Okay I got sidetracked at the end there, but thanks for the feedback!