What is the name of the dark wizard who was known for his expertise in Legilimency and Occlumency?
Severus Snape
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> What is the name of the dark wizard who was known for his expertise in Legilimency and Occlumency? [/INST] Severus Snape </s>