He sighed and poured another glass of Fire Whiskey. "That leads to another topic I wanted to discuss." He drank the contents of his glass in one go. He savored the feeling of the alcohol for a while before he spoke. "The spell is named  Sectumsempra. A spell that causes a thousand cuts. When I showed it to the other Knights of Walpurgis, Dolohov made his own modifications. His change changes the multiple cuts to a singular one. Making a gruesome gash that becomes incredibly hard to heal."