Phantasmas are ghost-like monsters.
Phantasmas are the souls of dead people or animals that have given up their lives to darkness. After they die, they become a Phantasma, or phantom. They are normally pale creatures with tattered white cloaks, like a bleached white version of something the "Grim Reaper" would wear. They carry long scythes that with one slice can transform a perfectly good person into an evil ghost. They have no eyes and their mouths are abnormally wide and are covered in large, pointed fangs. They are mindless, and anyone who is evil and has a brain can control them to his or her will.
A group of them are seen attacking Link, Redwing, Epona, and Iggy's friends.