50th Floor: An Oni Presence - The Oni of the 50th Floor
ListEntry
Table of Contents
Quest Overview
- A general tip is to save Lucha Oni (Quetzalcoatl) for last due to the severe NP Damage debuff that all party members will gain upon breaking her first HP bar.
- Dealing with the other non-break bar enemies first will make the fight much easier.
- Her final HP bar is best dealt with using critical damage sources if possible, given NP damage will be very low with the debuff active.
Part 1
Fatal Battle 1/1
| Enemies | Class | HP | Lvl |
|---|---|---|---|
 Quetzalcoatl Lucha Oni Upon Break - Harsh Training: Quetzalcoatl grants everyone (both enemies and friendly Servants, including the back row) with the following Permanent and Unremovable effects:
|  | 110,652 | 60 |
Quetzalcoatl Lucha Oni | | 152,146 | 60 |
 Beowulf Brawling Oni |  | 70,137 | 57 |
 Spartacus Rebellious Oni |  | 108,600 | 90 |
 Fergus mac Roich A Man's Oni |  | 83,181 | 70 |
Quest Rewards
209
Posts
18237
Entries
Contributors
Servant Tier List
Servants
Summon Banner ListHunting Quest Part 13
Summon Simulator (JP)
Summon Simulator (NA)Lostbelt 7: Nahui Mictlan - Spoiler-free Walkthrough
Ryougi Shiki (Moon Cancer)Rabbit's Reviews - Archive
Passionlip (Saber)- Ordeal Call I: Paper Moon - Spoiler-free WalkthroughOrdeal Call Bleached Earth - Free QuestsFGO Summer 2025 - Walkthrough
Larva / Tiamat (Archer)
Huyan Zhuo (Berserker)
Kriemhild (Rider)
U-Olga Marie
Miyu Edelfelt (Lancer)
Larva / Tiamat
BB (Summer) - Ordeal Call Bleached Earth - Olga Marie QuestsAdvanced Quests
Mystic CodesA Legend BequeathedRabbit’s Reviews #421: U-Olga Marie (5* UnBeast)Ordeal Call Bleached Earth - Challenge Quests
Altria Caster (Berserker)
OberonNoble Pirate
Aesc the Savior 
Kama (Avenger)Lostbelt 7: Nahui Mictlan - Main QuestsOlga Marie Quest_1FGO Summer 2025 - Tier List Change Log
Scathach-Skadi (Ruler)
Grigori Rasputin
Craft EssencesFGO Summer 2025 - Quick Farming Guide
Tezcatlipoca[High Difficulty] The Origin of a Legend
Altria Caster
Koyanskaya of Light
Sessyoin Kiara (Moon Cancer)
Abigail Williams (Summer)
E-Flare Marie
Xu FuFGO Summer 2025 Event: Servant Summer Festival 2025!
Miyu EdelfeltMMM - Marie, Merrily Migrating to Mediterranean Miracle, Marvels at Massive Mammaries on Majorly-Maligned Maiden (Summer 2025 Part 1)
Mysterious Executor C.I.E.L.
