She is tall, with hair like fire and swirls of heat around her.
The Arcadian Campaign (Book 3)
Catherine pretended to be her during her scheme against the Duke of Violent Squalls
Sulia and the Prince of Deep Drought fought Larat. The Woe then fought and Imprisoned Sulia.
As a fae royal, Sulia is extremely powerful, Catherine considered her to be stronger than Larat, another fae royal. Sulia could use Category:Magic. She can create and manipulate flames, and can create wings on her back.
The Princess of High Noon's domain took the form of a field full of ashes, with the Sun of Arcadia burning down on it. It was mentioned that Sulia only called upon her domain to being an end to Winter. Within it, Sulia's strength was restored and she could burn all that set foot within it with the Sun of Arcadia.