This tecnuique used by Soul Edge is not as much of a tecnique as it is an ability. Any person who comes in contact with Soul edge or its fragments will be tainted by Soul Edge's dark aura. The user will become a demon or half demon, depending on their willpower. This only can work if the flesh of soul edge or if one of its fragments touches the skin of the person. If, wrapped in cloth, for example,it can be held, but no power can be exracted through this way.