Invisibility To Werethings Cantrip

E/F/M:

This Casting confers the power of total invisibility upon a single subject with respect to any and all were creatures, loup-garou, lycanthropes, therimorphs, therianthropes, etc. While under its influence, the subject cannot be sensed by such things, unless actively engaging such a creature or being. Physical combat. Once this has been done, however, the Effect of the Casting is totally negated at that Instant, and the subject may be detected normally by any and all shape-changing creatures or beings present.