Boss Guide: Ch21-3 (Traum) (2024)

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Last Updated: May 12, 2024 |

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Article byNorseFTX

Table of Contents

Enemy Layout
Boss Statistics
Overview
Team Recommendations
Video Links
Quick Servant Suggestions

Back to Lostbelt 6.5: Traum Hub

Additional Guides

Enemy Layout

Fatal Battle 1/1		156,313 James Moriarty
		208,418 James Moriarty
		305,183 James Moriarty
		200,974 James Moriarty

Section 21: Death of a Detective (3/3)AP - 25

Drops	Scarab of Wisdom x2 Egg of Truth x2
Rewards	Saint Quartz x1 Egg of Truth x5 Pure Prism x5 Hellfire of Wisdom - All x5

Boss Statistics

	Mandatory NPC Support: Charlemagne Lv90 NP5 10/10/10
CE		Equipped CE: Starting NP +50%; NP Gain +50%.
Passive		To the Best of My Ability: Increase own Special ATK vs Evil by 100%. Increase own DEF vs Evil by 30%. Gain 20 Critical Stars when attacking. Decrease own Healing Received by 100% [All Permanent, Unremovable].

James Moriarty
	HP	156,313
	LVL	90
	HP	208,418
	LVL	90
	HP	305,183
	LVL	90
	HP	200,974
	LVL	90
	Class	Ruler
	NP Bar
	NP Type	AoE
	Actions	Up to 3 per turn
	Traits	Servant, Humanoid, Male, Hominidae, Weak to Enuma Elish, Human Attribute, Chaotic Evil

Passive 1		Urdr's Spinning: Restore own HP by 3,000 each turn [Permanent, Unremovable].
Passive 2		Verdandi's Spinning: Increase own Buff Removal Resist by 100% [Permanent, Unremovable].
Passive 3		Skuld's Spinning: Increase own Star Drop Rate Resist by 100% [Permanent, Unremovable].
Passive 4		The Threads of Fate That Should be Damaged: Decrease DEF for Mash Kyrielight by 50% (1 turn). Apply Damage Plus 2,000 to Mash Kyrielight (1 turn) [Unremovable].
Special Skill		The Threads of Fate That Cannot be Damaged: Decrease ATK for an enemy by 80% (1 turn). Decrease NP Strength for an enemy by 80% (1 turn) [All Unremovable]. * If Mash is on the field, she will remove this effect and inflict Damage Minus 800 and Damage Taken Plus 3,000 on Moriarty. Note Mash also performs this at battle start to the skill that Moriarty uses on her.
Break		Hmm… I suppose I underestimated you a bit too much.": Apply Evade with 50% chance to work on self (3 turns). Remove own Critical Rate debuff. Decrease own NP Gauge to 0. Decrease own Quick Resist by 20% [All Unremovable].
Break		"…Recalculation.": Increase own Crit Rate by 50% (3 turns). Increase own Crit Damage by 30% (3 turns). Decrease own NP Gauge to 0. Decrease own Arts Resist by 20% [All Unremovable].
Break		Remove all buffs (including permanent buffs) from self. Decrease own NP Gauge to 0. Decrease own Buster Resist by 20% [Unremovable].
Skill 1		Mathematical Thinking A: Apply Evade to self (2 times, 3 turns). Apply Sure Hit to self (3 turns). Decrease Arts Resist for all enemies (3 turns). Further decrease Arts Resist for all [Evil] alignment enemies (3 turns).
Skill 2		Slide Rule Weapon B++: Increase own Quick Card effectiveness (3 turns). Increase own Arts Card effectiveness (3 turns). Increase own Buster Card effectiveness (3 turns). Increase own Critical Strength (3 turns).
Skill 3		Dice Selection EX: Increase own NP Gauge by 1. Increase own Critical Rate by 20% (2 turns). Chance to apply one of two effects: - 50% Chance: Increase own Arts Critical Rate by 10% (1 turn). - 50% Chance: Increase own Buster Card Critical Rate by 10% (1 turn).
NP		Mathematical Malignant Annihilate: Deal damage to all enemies. Deal 150% supereffective damage to [Good] alignment enemies. Inflict Skill Seal on all enemies (1 turn). Apply [Evil] trait to all enemies (3 turns). Increase own NP Strength (1 turn) [Activates first].

Overview

Mandatory NPC Support Charlemagne and the Master's own Mash Kyrielight must be placed on the frontline. Mash will help clear undesirable effects inflicted by the boss, while Charlemagne gains a few helpful buffs.
James Moriarty is Ruler Class and has four HP bars (156k, 208k, 305k, 200k HP).
Moriarty starts with permanent buffs that include 3k HP regen per turn, 100% Buff Removal Resist, and decreased Critical Rate.
The boss's NP is drained to 0 every break, so Masters can indefinitely prevent the boss from using his NP if HP bars are broken in time.
First Break the boss gains unremovable 50% Evade for 3 turns, while also sustaining a permanent 20% Quick Resist debuff. The Critical Rate debuff is also removed from the boss.
Second Break, the boss gains Crit Rate and Crit Damage buffs, while getting a permanent 20% Arts Resist debuff.
Third Break, the boss loses all buffs, and gets a permanent 20% Buster Resist debuff.

Team Recommendations

This battle can technically be done with the NPC Supports alone with low rarity support (see video).
Single Target Avengers are good choices for this encounter due to Class Advantage.
Alternatively, Trait Bonus Damage Dealers are another option.
NP Gauge and Damage Supports are helpful as always, and particularly for this encounter since rushing damage on the boss to break his HP bar also prevents him from using his NP on the party.

Video Links

Note that these videos are not affiliated with GamePress, but showcase some lineups that are effective in clearing the final challenge. These can serve as a good reference for how to rotate skills during this quest or simply to have a look at the encounter before diving in.

Quick Servant Suggestions

- Recommended

ST Avenger Damage Dealers

AoE
Trait Bonus ST Damage Dealers

Offensive Support




Last Man / Solo Servant

Lostbelt 6.5 Traum

Lostbelt No.6.5: Realm of the Thanatos Impulse, Traum - Life and Death of an Illusion

Event Content

Lostbelt No.6.5: Traum Spoiler-free Walkthrough

Lostbelt 6.5: Traum - Boss Guides

Event Quests

Traum - Main Quests

Traum - Free Quests

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About the Author(s)

NorseFTX

Twitter: @NorseFTX

Content Director at GamePress. Passionate about fighting games, virtual/augmented reality technology, neuroengineering, and video games in general. Classical Piano Performance, Sprite Art, and Under Night In-Birth enthusiast.

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