DominionStrategy Wiki
It's nice, but can be boring with nothing that interacts with it. Perhaps add a setup clause saying that it does not count as one of the 10 kingdom cards.
I think it treads on Peddler's design space. There's probably nothing wrong with it, it's just a less-interesting Peddler.
It's a lot different from Peddler. You pick up Peddler for the nice free coin, while this is for TfB.
Actually, adding a TfB on-gain might be interesting...