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=Overview=
=Overview=
Debuffs are an event mechanic that was introduced during the [[Summer 2015 Event]]. Every event since then has had debuff mechanics at one or more maps. Debuffs can either be a '''reduction in the boss' armour''' or a '''damage bonus'''. It has been more common for debuffs to be of the latter type. The damage bonus can apply to just the boss node or across the whole map depending on the event. Given how much variation there are in debuffs, please refer to '''the latest event page''' for information.
Debuffs are an event mechanic that consists of weakening the final Boss of a given map. Debuffs can either be some form of '''Damage bonuses''' against the Boss or the Boss and its fleet, or be an '''Armor Reduction of the Boss''' (implying a buff to any damages dealt to the boss). Debuffs are more commonly the former type.
*When a debuff phase is available on a map, it can only be unlocked after reaching the '''Last Dance''' of the '''Final Boss''' of the said map.
*To unlock a debuff, the player must complete several gimmicks that vary across maps and difficulties.
*Once the debuff is unlocked, the '''Final Boss''' CG will be changed from its '''Last Dance''' form to its '''Debuffed''' form, visually indicating the effectiveness of the debuff.
*The damage bonus most often applies to the ''Boss Node'' only, but can also be effective across the whole map depending on the event.
*In the case of damage bonuses, the bonus can be heterogeneous, with some ships or ship types having greater bonuses.
*In the cases of Armor Reduction, see the [[Damage Calculations]] page for a better understanding.
*Doing the debuff never is mandatory to clear the map.
**In almost every case, doing the debuff is highly encouraged, at least in harder difficulties.
Given how many variations there are in debuffs, please refer to '''the latest [[events]] page''' for information.
=History=
Debuffs were first introduced during the [[Summer 2015 Event]], and every event since then has had debuff mechanics on one or more maps.
==[[Summer 2015 Event]] - E-7==
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[[File:Air Defense Hime Intro.png|right|thumb|''Fufu...you came...? Hee... you came...''<br> The Air Defense Princess, the first boss to be introduced to the Armor Reduction Mechanic]]
The [[Summer 2015 Event]] introduced players to the gimmick for the first time. When the event originally started, the later stages of the event were not released till a day later in order to make sure the gimmick was working as intended. When the later portion of the events were introduced, players would be greeted with a surprise which would present a greater challenge for them once they reached '''E-7 Operation FS'''.
Operation FS introduced the [[Air Defense Princess]], an abyssal air defense destroyer boss, which while was tough in general, was only made harder to defeat due to her incredibly high defense. The Devs tweeted later in that day that there was a system that players need to figure out to destroy the 'enemy's main defense" which would involve "destroying the enemy's supply line"
Players who managed to dig around would eventually find that key to weakening the [[Air Defense Princess]] would involve the following conditions to be met:
*S ranking Node X which had the [[Harbor Princess]]
*S ranking Node Y which had the [[Isolated Island Demon]]
*Taking out a large amount of enemy [[Transport Ship Wa-Class]]
If some of these conditions were met, this would result in the [[Air Defense Princess]]'s defenses dropping enough to allow for your fleet to do significant damage to her. The effect was gradual and her defense would drop as the conditions were further met.
However, all armor reduction bonuses would be removed each day at 5:00 AM JST and players would have to repeat the process to weaken her once again.
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==[[Fall 2015 Event]] - E-4 & E-5==
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===E-4===
[[File:Submarine Hime Debuff.png|right|thumb|Submarine Princess after debuff takes full effect.]]
The [[Fall 2015 Event]] would be the second time in which the armor reduction mechanic would be used in the game. Unlike beforehand where the effects would happen on a gradual basis, the mechanic would only activate when all conditions were met.
Players would have to fight against the [[Submarine Princess]] who was also given a high armor buff but could be weakened under the following conditions:
*Defeating the [[Harbor Princess]] at Node J
*Defeating the [[Anchorage Princess]] at Node M
Meeting these conditions would drastically reduce the [[Submarine Princess]] armor drastically and would result in a change in her dialogue and image. The image was however only available to those that used a mobile task force which players were encouraged to use since it would grant a higher accuracy bonus against fighting submarines.
Like beforehand, the mechanic would reset after each day, but this time the time of reset was set for Midnight JST.
===E-5===
[[File:Destoyer Water Demon Debuff.png|right|thumb|160px|Destroyer Water Demon after debuff takes full effect.]]
Within the same [[Fall 2015 Event]], players who made it to E-5 would fight against the [[Destroyer Water Demon]] who was given an armor buff of her own. Her requirements were different as she required the following conditions:
*Defeat a total of 15 [[PT Imp Group|PT Imp Groups]] during the attack phase of the operation.
As usual, when these conditions were met, a drastic change to her image and dialogue would take place. The most notable change was that she would lose her helmet when the debuffing process was completed.
Like beforehand, the mechanic would reset after each day, but this time the time of reset was set for Midnight JST.
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==[[Spring 2016 Event]] - E-6==
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[[File:Central Hime defeated.png|thumb|right|When all the requirements are met, it was quite possible to single-handedly kill off the [[Central Princess]] in a single blow during the opening battles before the main fight began.]]
Unlike the previous events, [[Spring 2016 Event|Spring 2016 Event in E-6]] introduced a complex but simple mechanic that was confirmed to be a multi-stage process debuff. On top of that, admirals were required to go through several stages in order to actually perform the armor reduction mechanic against the [[Central Princess]].
In order to make the [[Central Princess]] vulnerable, admirals were required to do the following steps:
*Survive an air attack from node I on E-5 without taking any damage
*Score an S rank on Node A in E-6
*Score an S rank on Node G in E-6
*Score an S rank on Node L in E-6
Upon completing 2 out of the 4 steps, the [[Central Princess]] would experience a reduction to her armor, but the full effect would not take place until you had completed all 4 steps which would also result in a small change to the Central Princess's lines. In addition, the debuff was triggered only by attacks done by dive bombers and possibly Seaplane Bombers during the Aerial Phase and the Carrier Support Expedition in battle. As in most cases, players were able to take out the [[Central Princess]] in a single blow before the battle even started.
Once you completed each debuff step, the effect was permanent and did not revert back for the remainder of the event.
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==[[Summer 2016 Event]] - E-3 & E-4==
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===E-3===
The Second Battle of Malaya features an armor reduction mechanics that was different in that this one incorporated being able to successfully intercept the Air Raid attack against your base twice, and also scoring an S rank in Nodes A and D. If done successfully, a ding sound would be heard upon returning to base.
Unlike previous events, the armor reduction contributed to weakening the [[Battleship Princess|Summer Battleship Princesses]] instead of the boss of the map. Making them more vulnerable to attacks from torpedo bombers.
===E-4===
The Final event map of the Summer 2016 Event featured a large series of steps required to trigger the armor reduction for the [[Summer Heavy Cruiser Princess]] all of which required for the fleet to successfully score an S rank on '''four of the five following nodes''':
*Nodes C, D, H, I, & K
By completing 4 of the 5 nodes using a combination of Surface and Carrier Task Force you would receive a ding when you return to your homeport base indicating that you have met the requirements.
This resulted in the [[Summer Heavy Cruiser Princess]] armor being reduced allowing for your fleet to have a stronger chance of defeating her.
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==Later events==
*[[Fall 2016 Event]] - E-3
*[[Fall 2016 Event]] - E-5
*[[Winter 2017 Event]] - E-3
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=See Also=
=See Also=
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