Black Clover Episode 37: The One with No Magic
Episode 37 of 170 of Black Clover, aired June 19, 2018, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Three of the Magic Knight captains—Jack the Ripper, Charlotte, and Nozel—appear and come to Yami and Asta's aid in fighting the Third Eye. Asta is told that his grimoire and swords belong to Licht's master, and Licht wants them back.