rare_prism
A type of currency in Fate/Grand Order, only obtained from selling rare Servants in the shop.
See also
* Mana Prism
* Summon Ticket (fate)
* Holy grail (fate)
* Chaldean visionary flames
* Golden Apple (Golden Fruit)
** Silver Apple (Silver Fruit)
* Saint Quartz (fate)
** Saint Quartz Fragment