Illyana Rasputin, also known as Magik, is a fictional character in the Marvel Comics universe. She first appeared in Giant-Size X-Men #1 in 1975. Illyana is the younger sister of Colossus, a member of the X-Men. She possesses powerful mutant abilities, including teleportation and the ability to wield magic. As a character, Illyana has a complex backstory involving her time in the mystical realm of Limbo, where she trained to become a sorceress. Her experiences in Limbo shaped her personality and powers, making her a significant figure in various X-Men storylines.