King, Joker, Jack is currently unavailable on the US ver.King, Joker, Jack is only available in Death Jail Summer Escape Pickup Summon.
For the duration of "Death Jail Summer Escape" event, this craft essence gains the following effects:
Here is a list of servants & CEs that can be obtained for the duration of the Summer 2017 event part 1: Dead Heat Summer Race and part 2: Death Jail Summer Escape.
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
FGO Reroll Tier List [5/11 updated!]
5 Star Servants Tier List: Best Servants [5/9 updated!]
Saber
Best Servants [★4]: 4 Star Tier List
Best Craft Essence: Craft Essence Tier List
NP Charge & NP Seal - Craft Essences
Evil Bone
Ereshkigal
Arthur Pendragon(Prototype)
Gorgon
Black Holy Grail (The Black Grail)