This weekly mission was added in v23.85.06 as part of Armonia Final Episode. The featured loot are various Armonia Accessory Recipes, Page - Creacion, and Page - Placidez.
This mission guide is based on v23.97.53 game client.
Location: Armonia Apostadero (E4/E5)
Duration: 60 minutes
Entry Cost: None
Everyone should prepare Soul Crystals (lots!), Triumph Fillers, Steroid Potions, etc. Prepare some food dishes, and attackers can consider using Demon Tribe Ampule. You may also want to use some Holy Water of Armonia as well. Do NOT stay dead and wait for resurrection. Use Soul Crystals whenever needed or the mission may result in failure.
Tanks: The squad needs 1 main tank and 1-2 secondary tank(s). The main tank can use Sirius and Valeria. The secondary tank(s) should use Sirius + Coimbra Trooper + Scout/Emilia/Valeria to hold as many monsters as possible.
Debuffers: Lisa (with Trigger enchanted daggers), Idge, and Leonele (with Lv.12 Leadership and Lv.11 Mark) should have their rings to reduce DEF Rating. Having Vikis will help to keep the boss under Burn status. Lorraine can do her combo with Viki in debuffing. Lorraine, Dolores, and Laura can also help to reduce the boss' attacks. Other debuffers (Rascel, Heiran, etc.) are optional.
Buffers: Rio, Grace, Lorch, and/or Karjalainen are recommended for their respective Lv.12 buffs. Using secondary accounts for this is not recommended, as this raid is fairly difficult to multi-task with 2 accounts.
Attackers: Use your best anti-demon mental magic-users, such as Montoro, Rachel, or Berthe. This is to capitalize on Oscuras' low Mental RES. If you have difficulty getting to the devices (see below), you may want to bring along Emilia for Protection Field skill.
2. Fragments of Emotion
There are several Fragments of Emotion monsters in the main chamber. (They look like Fragment of Abyss Madness in Armonia El Templo.) These monsters deals melee splash damage. They knock the targets down a lot and inflict Stun status. They will respawn if killed.
0 0 ❆ 0 0 ♥ 0
0 60 ❆ 60 60 ♥ 60
At the start, the secondary tank(s) should move up to lure all Fragments of Emotion away to the sides, without provoking Oscuras. Hold them there until the boss is dead. This is vital, as the attackers cannot deal out damage on the boss properly if they are repeatedly interrupted by the Fragments. The secondary tank(s) should stay away from the devices as well, since the attackers will need to use the device to get the protection status (see below). They should also stay away from each other to avoid provoking the same monsters.
3. Blessing of Grand Saint & Gloomy Present
The main chamber has 4 devices situated around the boss. There should be 1 active device and 3 inactive devices (denoted by a red beam of light) at any one time. Clicking on an active device will grant Blessing of the Grand Saint status, which decreases damage taken from Oscuras' skill attacks for 2 minutes.
Secondary tank(s) will not need this, as they will be out of the attack range. The attackers will mostly be hit by the boss' melee area damage skill, so they probably need this status to avoid being killed. Alternatively, the attackers can use Protection Field skill on all characters instead, since the boss' magic attack skill (see below) is directional and usually aimed at the main tank.
In addition, every 2-3 minutes, everyone will be affected by Gloomy Present status, which also removes all non-cash buffs. (This is similar to the effect in Twisted Spacetime Room mission.) Use Escape Artist skill to remove the visibility reduction. Note that this will also remove Blessing of the Grand Saint status, so remember to return to the active device whenever you are affected by Gloomy Present. To avoid having to re-buff repeatedly, use Principal Ampule and Magic/Shooting/Melee Enhancement Ampules (which are considered cash buffs) instead.
Once the secondary tanks have all the mobs under control, the main tank will move up to provoke Oscuras.
Oscuras deals melee splash damage and can inflict Armor Crasher status. After a few normal attacks, Oscuras will use Destruccion skill, which deals melee damage to 36 targets in a circular area centered on himself. When his target is close, he may use Tiempo del Fin skill, which deals magic damage to 36 targets in a rectangular area directly in front of Oscuras.
100 100 ❆ 100 100 ♥ 100
66 80 ❆ 80 80 ♥ 44
Do not lure Oscuras away from the middle of the chamber, or he will gain Monstrous Intensify, Monstrous Fortify, Monstrous Acceleration, and Monstrous Meditation statuses. This will increase his statistics drastically, and should be avoided as much as possible.
100 100 ❆ 100 100 ♥ 100
66 120 ❆ 120 120 ♥ 84
Do not use Whole Cancellation skill on Oscuras or he will gain Shout in Nightmare status, granting ATK Rating +7, DEF Rating -4, and almost doubles his ATK. This stacks with the Monstrous statuses mentioned above.
Viki should summon and charge Tenderaiser quickly to keep Oscuras under Burn status as much as possible. His area attacks will probably kill the summoned monsters, so keep trying. Lorraine can help further by inflicting Enervation status with Rev while Oscuras is under Burn status as soon as possible.
The squad can also try to reduce Oscuras' attacks by inflicting Rev Dance, Hare Dance, and Holy Mark statuses with Lorraine, Dolores, and Laura.
There are also random area bombardments, so if you see a red area effect circle on you, quickly move out of it while it is still loading.
When Oscuras is dead, a treasure chest will appear in the middle of the chamber. The boss drops nothing. Bonus roulette costs 5,000,000 Vis.
Recipe - Armonia Boots
Recipe - Armonia Gloves
Recipe - Armonia Earrings
Recipe - Armonia Necklace
Recipe - Armonia Belt
Page - Placidez
Page - Creacion
Abyss Piece (any)
Red Armonium Ore
Lv.100 AR32 Weapon
Elite Le Blanc
Elite Le Noir/General Plate
Enchantment Chip Expert x1/2/3/4
Granado Espada 原初の闇
Granado Espada - First Darkness