Black Clover (tv) (dub) Episode 139 • Best Pick

Vanessa returns to the Witches' Forest to ask the Witch Queen for ancient magic to strengthen her "Red Thread of Fate". Instead of a direct power-up, the Queen assigns her to train two "useless" witches, Samantha Kravitz (Sound Magic) and Elvira Aguirre (Illusion Magic).

Critically, the episode is viewed as a solid, if not spectacular, addition to the series' world-building. Black Clover T.V. Media Review Episode 139 | Anime Solution

Vanessa ultimately rejects the Queen's easy shortcut to power, choosing to focus on serious training and even deciding to quit drinking to prepare for the future. Deep Review and Reception

The episode's core message is that no magic is truly useless; its value depends on creativity and application. Vanessa helps the two novice witches combine their non-combat magic to create a massive, terrifying illusion that scares off powerful magical beasts without a direct confrontation.