(n.) One who causes bad luck.

Jonah alchemy amulet bad influence bedevil bewitch bewitchery bring bad luck charm curse demonize diabolize divination enchantment evil eye evil genius evil star fetish fetishism fylfot gammadion glamour good-luck charm gramarye hex ill wind jinx juju jujuism love charm lucky bean lucky piece madstone magic malevolent influence malocchio mascot mumbo jumbo natural magic necromancy obeah obsess overlook periapt philter phylactery possess rune scarab scarabaeus scarabee shamanism sorcery sortilege spell spellbinding spellcasting sudarium swastika sympathetic magic talisman thaumaturgia thaumaturgics thaumaturgism thaumaturgy theurgy vampirism veronica voodoo voodooism wanga whammy white magic witch witchcraft witchery witchwork wizardry