Skill Up & Ascension MaterialThe fang of a dragon. Dragon Tooth Warriors are created using these fangs.
America: Deming (Free Quest) is the best AP-saving location to farm Dragon Fang. You'll get around 6x Dragon Fang by spending 170 AP.
Babylonia: Eridu (Free Quest) is the best time-saving location to farm Dragon Fang. You'll get around 6x Dragon Fang by spending 210 AP.
Fuyuki: Mobile Coordinate No.0 (Free Quest) is the fastest location you unlock to farm Dragon Fang.
Here is a list of servants that need Dragon Fang to perform Ascension and Skill Up.
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
Altria Pendragon (Lancer)
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Code Cast
Stinger of Certain Death
Parvati (Sakura)
How to Complete Master Missions [JP May 7 - May 13]
Ereshkigal
Arthur Pendragon(Prototype)
Gorgon
Black Holy Grail (The Black Grail)