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
(6/6/2025) A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way
Of all the cards on this list, few keep you aggressive and get you to a win like this righteous sword in your hand
You will need ramp early, and theres plenty of it to be had
Or maybe the ancient carvings on Portal Second Ages Ancient Craving are just that
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