Babylonia: Reed Fields (Free Quest) is the best AP-saving & time-saving location to farm Stinger of Certain Death. You'll get around 6x Dragon Fang by spending 210 AP.
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
Best Servants [★4]: 4 Star Tier List
Best Craft Essence: Craft Essence Tier List
How to Complete Master Missions [US May 7 - May 13]
Fate Grand Order Farming Items
Altria Pendragon
Holy Night Supper
Cursed Arm Hassan
Marie Antoinette (Caster)
King Joker Jack