Reincarnated In Vikings

Weavers from A Discovery of Witches, Merlin creates the art of Weaving spell. He takes Titus, Ximenos, Aslop and Maria.

Titus and Ximenos gain the ability to use magic after being possessed by Ares.

Only these four will gain the weavers powers because Merlin felt the power was too dangerous, and made a contract that made them unable to teach this ability to others.

Maybe even Diana Bishop can appera later. Also, about Morgana Le Fey there is an idea of her, the real evil sorcereress being Morgause.

Morgana was her half sister, also which Morgana Le fey from MCU Runaways or Merlin TV show.