Sylphi is a Phantom who was born when a man named Nishikawa became desperate. His Gate was a boy named Yuzuru Iijima who got into an accident when later when he rode a motorcycle who was friend Akari Kurata. It can fly and controls airbone winds and other movements that are associated with a halberd. He is the main antagonist of two episodes of Kamen Rider Wizard which are I Want to Ride a Bike a also Magician is Fate.
Kamen Rider Wizard[]
Sylphi first attacks his Gate, Yuzuru with horde of Ghouls, only when Kosuke appears and overpowers them with his bike before the changes to Beast. Later when Sylphi tries to attack Yuzuru. he soon stops by Wizard Land Style, causing him to withdraw immediately. Soon after, Sylphi begins to chase down Yuzuru and make him run by bike, and Sylphi makes Yuzuru fall on the bike and when he is close to trying to make him a Phantom, until Beast appears to stop Phantom, Beast then fight against Sylphi. At this point Sylphi feels guilty about what hapeened to Akari, and Yuzuru begins to turn into a Phantom.
But when Yuzuru sees that Akari is alive, he is able to react to his Phantom. But soon after Sylphi kidnaps Akari and promises Akari in exchange for Yuzuru for Wizard and Beast. And after the two Kamen Rider meet Sylphi. However, Sylphi breaks his promise and tries to kill Akari, but is prevented by a third Mage, who uses gravitational technique to stop him. Soon after, Wizard and Beast defeat the Ghouls without much difficulty. He then fights Wizard and Beast who defeat him using a Dragon Shinning and Shooting Mirage combination. Although Sylphi was defeated, he would have to face the White Wizard because Yuzuru refuse to become a Mage.