Gringolet can be obtained by having Gawain reach Bond Level 10.
Gringolet is an exclusive CE to Gawain.
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
Best Craft Essence: Craft Essence Tier List
FGO Reroll Tier List [5/11 updated!]
Hero's Proof (Proof of Hero)
Medusa
Henry Jekyll & Hyde
Fate Grand Order Farming Items
4th Singularity: London
Ereshkigal
Arthur Pendragon(Prototype)
Gorgon
Black Holy Grail (The Black Grail)