Most Treasure decks will at the very least always have red, with the rest of the colors more varied
And then you can sacrifice artifact in decks with death triggers like Solemn Simulacrum or Ichor Wellspring
I also really like Shaman of the Pack for immediate reach, and if we are forced into combat then we can do much worse than End-Raze Forerunners
Fifth Place Yawgmoth, Thran Physician Andrea Piemonti This powerful 4 drop is really a one-card-combo: It does the removal package, the card draw engine, and it can also proliferate (a relevant ability in a world of Urzas Saga)
But if you just have some cards that are worth something and wonder if you should sell or hold, here are a few good ways to determine that
Kiora the Rising Tide looks like she would be outstanding in this deck, and she is fine, but again she somewhat underperforms compared even to the two mana looter dorks, which in turn tend to be considered more as filler most of the time