Blacks archetypes are both villain-centric, so it shouldnt be too much of a downside that Tombstone, Career Criminal only recurs a villain creature
Players have already caught on to Anzrag, the Quake Mole as a great option here, enabling a string of combat steps in the right boardstate
Compared to the more aggressive red decks, you are less about being able to go to their face with the burn spells, but dealing with creatures like Thing in the Ice and Ledger Shredder seems important, and you have a high enough concentration of creatures you can target it with
their value is subjective and tied to a collectors willingness to pay
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