Yu Yu Hakusho is one of the greatest shonen anime series of all time, competing with other beloved series like Naruto and Dragon Ball Z years after their first appearance. From its classic theme to its relatable cast of protagonists, it seemed to get everything right—including its villains. As Spirit Detective, teenage bad boy Yusuke Urameshi is forced to go up against some of the most fearsome monsters in either the Human or Demon Worlds.
Source:https://www.cbr.com/yu-yu-hakusho-dangerous-villains-ranked/