In Season 4, William usually levitates before jumping into the Digital Sea or when he activates a tower for X.A.N.A. In Season 3, he only levitated once under X.A.N.A.'s control to destroy the Core of Lyoko. William doesn't use his levitating power when he is in a fight with the Lyoko Warriors, and the reason is unknown.
In the silver-white suit, it requires his Zweihandler, and gives off a purple aura similar to William's Super Sprint. In the Black Suit his sword helps aid in levitation but isn't required but without it he has a black aura similar to his Super Smoke.
Times When Used