A friend and I want to know if the insignia of claws magic item (HotDQ, p. 94) will work when he is in his Wild Shape form. He is playing a druid (Circle of the Moon). It does say that it affects natural weapons, but we aren't sure if Wild Shape will allow him to "wear" this item in different forms. If so, how would it be attached? Is it like a necklace, or a pin? Would it only work on specific forms?
His favorite forms are polar bear and water elemental.