Femme Fatale Baiser

is the Noble Phantasm of Salome.
Its appearance is a crystal skull. The trophy that Salome retrieved at the end of insanity, yearning, and fresh blood, that is the head of crystallized. Although it is usually a hand-held size, it can be freely enlarged or reduced according to the intention of Salome. John the Bapitst has a legend of using a variety of magic, and his head is a mysterious mass that tranformed into some kind of Mystic Code. The owner will be able to exercise a variety of magic———even if they do not have magic circuits. 
At the time of release, the crystal skull will enlarge and prey upon enemies. If the spirit returns, the skull will turn from crystal into gold.
==References==
Category:B rank Noble Phantasms
Category:Anti-Unit Noble Phantasms
Category:Noble Phantasms
Category:Mystic Codes
Category:Noble Phantasms introduced in Fate/Grand Order