Scathach's Powers In AHS: Roanoke Explained

Scáthach is a witch of few words. She is typically present for ritual sacrifice, manipulating the actions of others through fear and magic. But halfway through the season, her origins are revealed. Not only is Scáthach a formidable witch, but she is also the first Supreme (via Huffington Post). These powerful witches and the concept of the Surpeme were first introduced in "American Horror Story: Coven." And long before Fiona Goode (Jessica Lange) held the title, Scáthach took power from the old pagan gods of Europe. When she traveled to the Americas in the early days of colonialism, she was given a new sort of power that resulted in the creation of the Supreme. The Supreme witch is the pinnacle for any coven and is defined by her ability to perform The Seven Wonders.

With her limited screentime, Scáthach is only around long enough to demonstrate three of The Seven Wonders. The first is telekinesis, which Scáthach uses in a number of ways, including freeing The Butcher (Kathy Bates) from her imprisonment in colonial times. Scáthach also seems to have a particular fondness for concilium, otherwise known as mind control. She particularly enjoys enthralling men who immediately fall for her charms. She also appears suddenly, most likely through transmutation. But as Supreme, she would have the ability to do the rest of The Seven Wonders we don't see her demonstrate on the show, including pyrokinesis, divination, vitalis vitalum, and descensum.