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
FGO Reroll Tier List [5/11 updated!]
Dragon's Meridian
1-3 Star Servants Tier List
Fate Grand Order Farming Items
Tristan
Mystic Eyes of Distortion
Saint Quartz Farming Guide
Ereshkigal
Arthur Pendragon(Prototype)
Gorgon
Black Holy Grail (The Black Grail)