Mewick can shape their head-flames into illusions of other Pokémon to lure in Trainers. They quietly siphon away their victim's life force, all while giggling and acting cute so the target doesn't suspect a thing.
While shining a light and pretending to be a guide, it leeches off the life force of any who follow it. A Mewick is said to possess the genes of all Pokémon.
