Saphir was ruthlessly wounded and murdered by Wiseman shortly after Black Lady was born and while trying to warn his brother of Wiseman's deception in Saphir Dies! Wiseman's Trap (1994).
Black Lady never managed to gain possession of Sailor Moon's immeasurably strong Silver Crystal in the original series. Also, Black Lady was never ordered by Wiseman to capture either Sailor Moon or Neo Queen Serenity at the Crystal Palace, but instead willingly harnessed the full evil powers of the Malefic Black Crystal itself to have the Dark Gate open much faster.