Blade Fangs was a Japanese manga created by Itagaki Keisuke. There were four works in total, namely Grappler Blade Fangs, Fanma Blade Fangs, Blade Fangs Path, and Blade Fangs Path 2. The theme of this manga was hand-to-hand combat, and it told the story of the young Blade Fang fighting with strong enemies in various underground arena competitions. The characters in the Blade Fangs series had distinct personalities, compact storylines, and unique styles. This series of comics was well-known in China and was welcomed and loved. The animated version of Blade Fangs also had two seasons and could be watched online. As for the viewing order of Blade Fangs, they could be viewed in the order of Blade Fangs 1, Blade Fangs 2, Fanma Blade Fangs, Blade Fangs Path, and Blade Fangs Path 2.
There could be some rogue Aurors who turned to the dark side. They have the knowledge and skills, and they might raise Harry to create a super - powerful criminal. They could train him in combat magic but also in the ways of deceiving and evading the law. Or perhaps a group of goblin criminals who want to use Harry's connection to the wizarding world to their advantage, since goblins have their own grudges against wizards in the original series.