The only card I consider wrongly priced is Courtyard. It should cost $3. The difference there is quite negligible, though.
Adventurer and Scout would be un-workable as written at any price.
Every other card is exquisitely priced.
I don't think Courtyard is a problem at $2, but yeah it could easily cost $3.
I think Scout would be a perfectly fine $1 card as written. You could probably stretch it to $2 as well.
But yes, it wants a buff that's not just "make this card cheaper".
What Adventurer needs is not a price change, but a +Buy. It doesn't need to be strong, but that tweak would probably make it strong enough.
Counting House could conceivably be $4, I think, unless I'm underestimating the early-game potential of a $4 Counting House somehow.
Also, I want the official record to note that you have now called Tournament "exquisitely priced". Just saying.