Nemesis
'nemesis' is the definition.
(synonyms)
This is all the clue.
(Other definitions for bane that I've seen before include "Cause of great distress, rhymes with rule" , "Cause of distress, ruin" , "Something causing misery or distress" , "Source of misery" , "A fatal poison" .)
'nemesis' is the definition.
(I know that nemesis can be written as scourge)
This is all the clue.
(Other definitions for scourge that I've seen before include "cat" , "Cause great suffering to (someone); whip" , "Whip; agent of suffering" , "Whip, flog" , "Curse; whip" .)