Brooches are the magical jewelry that Butterfly and Black Cat use to transform. Spirits are the guardians of the Brooches, the summary of an abstract concept.

The butterfly Brooch is a hairclip, its spirit Papillon. He is the summary of creation and good luck. During the last wielder's death, a chunk of the Brooch was broken off. The chunk was lost with most of the Brooch's power, until Megabat found it.

The spirit Papillion is the summary of Creation and Good Luck. His Brooch is a hairclip made of an unknown gemstone, in the shape of a butterfly.

The spirit Bast is the summary of Destruction and Bad Luck. Her Brooch is a black ring shaped like the head of a cat. It's eyes are emeralds.

The spirit Fruit is the summary of Mystery. His Brooch is a bronze tie tack shaped like a bat with amber eyes.