All of the other cards on this list instead see significant Commander play, but do not have enough printings to support the demand for the card
Permanent mana ramp is incredibly rare outside of mana rocks or inefficiently costed creatures who tap for mana, as is ramp or acceleration that actually adds blue mana
By sacrificing itself and paying seven mana, Night of Sweets Revenge offers a Craterhoof Behemoth style of buff (no Haste or Trample unfortunately) that can buff up a team of creatures to end the game outright
Creatures that bounce on entry, like Cavern Harpy, are also great fits here, nabbing you extra value while you recycle your enters and leaves triggers
The play is 400+ years old, you can find more info online (and I do recommend it, its a greatly enjoyable piece when youre not trying to keep the summary to about three sentences)
Card case x 1