Draco was lucky to get out of persecution. Some like Pansy were now laying in prison waiting to be able to get out. Pansy had used the cruciatus curse quite frequently and likely wouldn’t get out of prison until she was thirty. She wasn’t even the worst off, Draco didn’t do that. He had tried, Merlin knew he tried. But no dark magic spell like that ever could come from his wand and he knew why now. Being part demon, or rather part incubus, it made quite a bit of sense. His powers were not close to torture, his powers were closer to that of a healer in a fucked up way. He couldn’t hurt someone, not like that. This too, was probably why no matter what, he couldn't cast a patronus either. That being a spell most frequently used against beings like him. 