Essential CE for farming friend points, can be equipped on any servant preferably in the backline because it has no effects other than increasing the friend points received to 75.
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
Demon (Demonic) Servants & Enemies
5 Star Servants Tier List: Best Servants [5/9 updated!]
Device Transfer Guide
How to build an Arts team
Berserker - Craft Essences
Asterios
Arthur Pendragon(Prototype)
Henry Jekyll & Hyde
The Phantom of the Opera
Awakened Determination