Adagilde

Adagilde is a witch. That was mentioned in season 1 as a book about her was in Cloud Tower archives.

Season 1
In "Mission at Cloudtower," Musa finds a book about her in Cloud Tower's archive.

Magical Abilities
Adagilde may know some basic, first-level spells that all witches can use, such as telekinesis, transmuting objects, and fixing minor messes. Like all witches she can fly.