Lethean

Humanoid species. Letheans are able to attack an opponent by giving a severe, usually fatal, telepathic shock. In 2371, a Lethean named Altovar attacked Dr. Julian Bashir in this way, but the telepathic shock merely put him into a temporary coma. Another Lethean (Soto) attacked Kor and telepathically stole information about the Sword of Kahless.