For all its spins on the formula, the Fate Series is nothing if not beholden to certain common threads tying together its myriad spinoffs and sequels, be it Holy Grails or Heroic Spirits. There’s one other amusing constant that - like many parts of Type-Moon lore - could be a franchise in itself, and it's this: if there is a priest in any of these stories, they are always armed to the teeth.