Creatures (29) 4 Robber of the Rich 4 Bonecrusher Giant 4 Torbran, Thane of Red Fell 4 Rimrock Knight 4 Anax, Hardened in the Forge 2 Phoenix of Ash 3 Magda, Brazen Outlaw 4 Goldspan Dragon Lands (22) Spells (9) One last note on Magda: in more powerful formats, like Historic, remember that Toolcraft Exemplar is a Dwarf Second on our list could easily be number one if all you care about is likelihood of getting banned, since this one is most certainly getting banned and soon
13.3 If the Seller sells a Lot that was unsold at the Sale: (a) within 90 days after the Sale to a person who was registered to bid at the Sale
Parallax Tide, Parallax Wave, and Opalescence allow us to generate infinite landfalls (remove lands with tide, remove tide with wave, remove wave with wave, recycle - this also generates infinite mana since you can tap the lands as they enter)
Between this and the fact that blacks best mana ramp spells only tend to thrive in specific niches of the Commander format, such as cEDH, mono and two color black decks, combo decks, and/or builds with reliable access to Urborg, Tomb of Yawgmoth, theres really no way to rank these cards