Be cautious of counterfeit cards, especially for high-value singles
Professional Face-Breaker shares Knuckles's ability to make Treasure whenever one of your creatures deals combat damage to a player, and also allows you to sacrifice those Treasures to exile the top card of your library, then play it that turn if you have the mana
At two mana, you can get a decent advantage if Chittering Illuminator lives, and you happen to have some creatures on top of your library
With a couple searches I was able to grab the first 3 of a 9 card illustration set that Im looking for
I specify at the time of writing because the market is incredibly volatile and subject to change on a whim
The chase cards from this set can sell for upwards of $3,000.00 each, depending on their condition