The Balancer, The Punisher, The Harmer.
Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ is Ad-Darr (in Arabic: ٱلْضَّارُ), The One who harms or benefits whoever He wills. He is the one whose wisdom may choose to use forceful corrections to discourage wrongful behavior.