In Trollhunters : Tales of Arcadia the sorceress is Pale Lady revealed as Morgana .
But because of the dark magic nature of the staff , summoning that much power to teleport everyone causes Claire to connect with the source of the dark magic – she comes under the spell of the sorceress who originally imbued Angor Rot with his magic .
Trollhunters-COLON- Tales of Arcadia