The Dagger

"The Dagger" is the title belonging to Joanna Beauchamp. The function of the Dagger and its powers are still unknown title.

Battle against the King
While fighting against her father, Joanna was referring to herself as "the dagger" and cast a spell next to Wendy, Ingrid and Freya, managed to defeat the King.

Character
In the drawing found in the book, Joanna is seen wielding a silver dagger.

Powers
It is unknown whether as "the Dagger" Joanna has arcane abilities.