InuYasha Episode 60: The 50 Year-Old Curse of the Dark Priestess
Episode 60 of 167 of InuYasha, aired February 11, 2002, 24 minutes. Available with English subtitles and dub where released.
Episode summary
Naraku enlists the help of Tsubaki, a dark priestess with a fifty year grudge against Kikyo, to possess Kagome and use her to kill Inuyasha!