DFOArchive: The Oculus: The Sanctum of Resurrection Made Simple

This is a 4-player dungeon that consist of 4 floors released on May 12, 2020.
You need to level 100 to enter. You can enter 3 times per week, once per day, but on able to receive rewards twice per week.
This dungeon doesn't require entry material but will consume 30 Fatigue Points.

Time Limit

There is no real time count down, but when you enter, the Ritual Completion gauge will begin to increase.
Your mission fails if you let this gauge reach 100%, and the entry you used will be reset.
Certain Grim Seeker monsters decrease Ritual Completion by 20%.
You can retry this as many times as you want within the time limit, so long as you stay in the same party.
You will lose your chance to reenter if you leave the party.
Life Tokens are limited to 2 per party for the ENTIRE 4 floors.

Dungeon Set-up & Layout

This dungeon consist of 4 floors (B1-4). Floor 1-3 each has 15 rooms in a 5x3 grids.
Your goal is to go through each floor and ultimately defeat the final boss on the 4th floor to clear the dungeon.
Each floor will have a floor boss and named mobs that will provide various buffs and activate different mechanics if you kill or don't kill them.

Lone Roseberry and Hellcat Louise are the floor bosses on the B1 & B2 floors.
Killing each will reduce ceremony progress by 20%
These floor bosses provide damage boost when killed (25% with one, 70% with both)
If you don't kill either of these 2 floor bosses, you will activate an alternative harder version of B3 floor boss.

Tria Celebrum and Volcano Spider are 2 named monsters in this category.
They can spawn anywhere in the map at any floor 1-3.
Kill Tria Celebrum will save the merchant NPC, Trainee Nayu, that can sell you useful pots if needed.
Kill Volcano Spider increases your max Life Token limit, very helpful.

Blood Ria and Nerolotte are 2 named monsters in this category.
They can spawn anywhere in the map at any floor 1-3.
Kill both will remove the "Chaotic Effect" from the dungeon and also restoring your party's vision in different stages.
The "Chaotic Effect" are "+60% hp, increased atk/def"