Muscle Cavalier is currently unavailable on the US ver.Muscle Cavalier is only available in Nero Festival 2017 Autumn event pickup summon.
For the duration of "Nero Fest 2017 Autumn" event, this craft essence gains the following effects:
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
Best Craft Essence: Craft Essence Tier List
Device Transfer Guide
Dragon Fang
Special Dango
Assassin of Agartha (Wu Zetian)
Magic Gem of Bows
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Ereshkigal
Arthur Pendragon(Prototype)
Gorgon
Black Holy Grail (The Black Grail)