Rosetta is the mother of the Greek Letter Group. She actually gave birth to all 28 prodigy all at once. She is the most powerful witch that is not a leader. Although she can beat a few leaders, she does not meet the requirements to become one since she rather master all 28+ elements at once in all the 9 branches of magic.
Rosetta's rank is witch. However, her magical skills are so powerful, they are comparable against the Leaders. She also holds the title Great Tournament Champion.
She was forbidden to take the Tournament because of her relationship with battling. Known as the harsh rainbow, she battles with no mercy.
She is powerful enough to end matches in the first minute.
Rosetta designed the Fall 2014 Tournament Cup (and ironically won her own made trophy!)
She accepted a post in the School of Enchanted Mystic Arts. She is now the Professor of Mystic Arts.
Rosetta is very smart, and she is the brains of Elemente, the other being the Leader of Light.