Dossoles Holiday Rerun - Event Operations and Farming Guide

Event Currency:

• Event Currency only drops from Normal Event Stages in the form of Stickers that can be traded in.
• Total needed to clear shop: 6817 (not including Furniture Parts)

New Players:

• Total from Event Missions: 2850
• Total from First Clear rewards: 1539 (585  from normal Stages, 510  from EX stages, 300 from S stages 144 from MO Stages)
• Remaining currency needed from normal Event stages: 2420
• Currency from stickers drops at a guaranteed rate of 1:1 for sanity spent.  Also, additional stickers can drop on stages and be traded in for currency. On average, those extra drops provide about 1 currency per 1 sanity spent (I've also seen some estimates that the extra drops provide 1.1 currency per 1 sanity spent.  I'll use the 1:1 ratio estimate in these calculations for a safer, more conservative estimate)   Thus, on overage, 2 currency is gained for every 1 sanity spent. Thus, approx. 1210 additional sanity on event stages is needed.
• Sanity required for First clear of EX, S, and MO, and Challenge modes: 489
• Total Sanity + Sticker drop currency required to clear the Store: 1699
• One week of Annihilation will require around 125 Sanity.
• Total Sanity + sticker drop currency required is 1824
• The event runs for 10 days. The weekly mission pots give and extra 240 for a total of 2640.  2880 if you save from the week before.   
• Natural sanity generation (f2p) will easily be enough to clear the shop. 

Returning Players:

• Missions give various rewards which might make them worth completing for returning players.  Players can decide for themselves if doing the EX, S, and MO stages are worth it or not for the mission rewards.  i will include them in the calculations. Total from Event Missions: 2850
• Remaining currency needed from normal Event stages: 3967
• Currency from stickers drops at a guaranteed rate of 1:1 for sanity spent.  Also, additional stickers can drop on stages and be traded in for currency. On average, those extra drops provide about 1 currency per 1 sanity spent (I've also seen some estimates that the extra drops provide 1.1 currency per 1 sanity spent.  I'll use the 1:1 ratio estimate in these calculations for a safer, more conservative estimate)   Thus, on overage, 2 currency is gained for every 1 sanity spent. Thus, approx. 1984 additional sanity on event stages is needed.
• Sanity required for clear of EX, S, and MO, and Challenge modes: 489
• Total Sanity + Sticker drop currency required to clear the Store: 2473
• One week of Annihilation will require around 125 Sanity.
• Total Sanity + sticker drop currency required is 2598
• The event runs for 10 days. The weekly mission pots give and extra 240 for a total of 2640.  2880 if you save from the week before.   
• Natural sanity generation (f2p) will be enough to clear the shop.

T3 Materials Farmable From Event Stages

No development materials drop from event stages, but the following T3 materials have infinite quantity that can be purchased from the shop with event currency:

This Page shows the Operations available during the [Dossoles Holiday]  Event. 

Event stages drop Stickers that can be used for buffs during combat and can be turned in for event currency.  More info on stickers and their use can be found here:

Trust bonus on Event stages

New Enemies and Mechanic

Translation Credit: Noël#4395

Challenge Conditions:

• DH-EX-1: Enemy casters have longer attack range
• DH-EX-2: Harbour Bluejackets have more HP and ATK
• DH-EX-3: 3 tiles are banned and Kites attack faster
• DH-EX-4: Defender deploy cost x4
• DH-EX-5: Explode boats do more explosion damage
• DH-EX-6: Operators take more continous Erosion damage while submerged
• DH-EX-7: 6 tiles are banned
• DH-EX-8: Operators have halved max HP

There are 4 secret stages with the following unlock requirements and challenge modes.  The image shown is unlocked as well

DH-S-1:

• Unlock: Gain 5 of Ch'en's mission currency and collect the milestone reward.
• Challenge Condition: Ally Block -1
• Photo: 

DH-S-2

• Unlock: Gain 24 of Ch'en's mission currency and collect the milestone reward.
• Challenge: Buffed enemies
• Photo: 

DH-S-3

• Unlock: Gain 39 of Ch'en's mission currency and collect the milestone reward.
• Challenge: Waterborne Platforms can't be used
• Photo: 

DH-S-4

• Unlock: Gain 66 of Ch'en's mission currency and collect the milestone reward.
• Challenge: Harbour Bluejackets have more HP and no longer lose HP over time while submerged
• Photo: