Im not going to parse out the best or worst ones here, but they all kind of fit the description
I did debate on just filling the rest of the manabase with basic lands, but ultimately, I felt that restricting the nonland spells to (mostly) Golgari guild cards was already keeping the overall power level down, so adding the best lands I could to the deck was fine
Ojer Axonil, Deepest Might / Temple of Power Listed at: $12 Ojer Axonil, Deepest Might thrives in red decks that feature instant and sorcery spells
Unlike the Thick Grey stamp which may have formed by stacking printing sheets before they were properly dried, I think Thin Grey stamps are indeed due to being low on black ink
With additional threats like Koma in the sideboard, and more willingness to side in a sweeper like Battle of Frost and Fire, the plan with Temur is just to go big, one way or another