This event incorporates two types of Craft Essences - appearance rate up and drop increase. Appearance rate up CEs generally hold the higher priority, as they can increase the amount of enemies encountered up to twice of what they normally are. These CEs give a 25% appearance rate up when not maximum Limit Broken, and 100% when they are (the effect caps at 100%, meaning that having one LB Craft Essence is enough).
Due to the event’s nature, it is better to farm one material type at a time, especially when in possession of drop increase event CEs. The most efficient farming spots are as follows:
Bronze Sack: Tundra
Silver Sack: Lava Tube
Gold Sack: Castle Gates
The last option is mentioned due to the sheer amount of event materials dropped, which makes it an arguably more efficient node assuming the player has little to no event Craft Essence.
In relation to the farming spots, each of the appearance rate up Craft Essences are relevant as follows:
Mata Hari’s Tavern: Lava Tube
Wizard and Priest: Castle gates
Heroine Eli-chan’s Adventure: Tundra & Pyramid
Due to the 3★ (Bronze Sack) drop increase Craft Essence being available via the FP gacha, it is recommended to go for Mata Hari’s Tavern first, before farming for Silver Sacks, and in turn, the Wizard and Priest Craft Essence.
After that, it is essential to try and get an Elizabeth Craft Essence from either the Forest, Lava Tube, or Pyramid stages, as it is the only Craft Essence of which the event shop doesn’t have five copies.
The total amounts of event drops needed to clear the shop are as follows:
Bronze Sack: 6400 (5800 without event boost items)
Silver Sack: 6200 (5000 without event boost items)
Gold Sack: 5900 (4700 without event boost items)
To get only the bare essentials (Event Craft Essences and Elizabeth (Brave)’s ascension material), 1200 of each event drop item would be needed.
Challenge Quest Guide
Challenge Quests will appear when all main Quests have been completed. There are restrictions for each Challenge Quest, as follows:
Graveyard: Females Only
Castle Town: Males Only
Forest: Western Servants
Cavern: No Kings or Queens
Tundra: Da Vinci's List
Lava Tube: Shorter than 165cm
Castle Gates: Servants Introduced in F/GO
Pyramid: Heroes of Justice
During the event, the following servants increase their attack.