How to Beat Kagutsuchi: Kagutsuchi Weakness and Strategies | Shin Megami Tensei 3: Nocturne (SMT Nocturne)

How to Beat Kagutsuchi

This is a guide to Kagutsuchi, a boss in Shin Megami Tensei III HD Remaster (SMT Nocturne) for the Nintendo Switch, Steam, and PS4. Read on to know how to beat Kagutsuchi, Kagutsuchi's weaknesses, and best strategies against this boss!

Kagutsuchi Pre-Battle Guide

Recommended Magatama Masakados, Kailash, Vimana, Djed
Recommended Level 88 or higher

Ideally, you should equip a Magatama that boosts Vit and Str or Mag. However, if you are following the True Demon Ending route, you'll be facing Lucifer immediately after defeating Kagutsuchi, and so we recommend wearing either Masakados, Djed, or Vimana to protect yourself from Curse and Nerve attacks.

First Form Strengths and Weaknesses

First Form Weaknesses

Weaknesses
None, but Phys and Magic attacks can go a long way

Kagutsuchi does not have any elemental weakness, however, using boosted Phys or Magic attacks is effective in dealing sufficient amounts of damage.

First Form Strengths

Attacks Vast Light, Fire, Ice, Elec, Force, Almighty, Normal Almighty Attack
Void Light, Dark, Ailments
Support Dekunda, Dekaja, Phase Shift

In Kagutsuchi's first form, it utilizes an undodgeable Almighty skill called Vast Light which can only be activated during a Full Moon. This attack costs Kagutsuchi 2 turns.

Likewise, it uses multi-target Fire, Ice, Elec, Force, Almighty attacks. Furthermore, its normal attack is of an Almighty element instead of the usual Phys.

The enemy voids Light, Dark, Ailments. It also has three Support skills in its first form, including Dekunda, Dekaja, and Phase Shift.

Kagtuschi's Defense rate is influenced by the moon cycle. Kagutsuchi uses Phase Shift to shift forward the moon cycle by 2 phases.

The table below illustrates the moon phase, the damage modifier and the amount of damage Kagutsuchi receives during specific moon phases.

Moon Phase Amount of Damage Kagutsuchi Receives
New Moon 200% of total damage
2/8 150% of total damage
Half 100% of total damage
6/8 75% of total damage
Full Moon 50% of total damage

Second Form Strengths and Weaknesses

During the second phase of the battle, Kagutsuchi takes on its second form and the moon phase is fixed at a Full Moon. However, the damage Kagutsuchi receives will remain at 100% of total damage.

Second Form Weaknesses

Weaknesses
None, but Phys and Magic attacks can go a long way

Kagutsuchi does not have any elemental weakness, however, using boosted Phys and Magic attacks is effective in dealing sufficient amounts of damage.

Second Form Strengths

Attacks Infinite Light, Fire, Ice, Elec, Force, Almighty, Normal Almighty Attack
Void Light, Dark, Ailments
Support Dekunda, Dragon Eye

Kagutsuchi's second form utilizes an undodgeable massive Almighty skill called Infinite Light. This attack costs Kagutsuchi 2 turns.

Likewise, it uses multi-target Fire, Ice, Elec, Force, Almighty attacks. Furthermore, its normal attack is of an Almighty element instead of the usual Phys and becomes a multi-target attack.

The enemy voids Light, Dark, Ailments. It also has two Support skills in its second form, including Dekunda and Dragon Eye which grants Kagutsuchi four extra turns.

Best Demons to Use Against Kagutsuchi

Best Demons to Use
Shiva iconShiva Dante iconDante Amaterasu iconAmaterasu
Metatron iconMetatron Vishnu iconVishnu Mot iconMot
Mada iconMada

How to Beat Kagutsuchi

Learn Endure and Summon Demons that Have Endure or the Highest Vit Stat

endure never yield

We highly recommend learning the skill Endure to survive Kagutsuchi's Vast Light and Infinite Light in both phases of the battle.

If, however, you (or your demons) cannot learn Endure, we recommend boosting Vit to have the HP reflect between at least 860HP to 999HP as RNG can sometimes pull at least 855+ damage from Infinite Light.

How to Learn Endure: Demons and Magatama with Endure

Always Top Up HP before Kagutsuchi Casts Vast Light / Infinite Light

max HP

General Tip

Topping up your HP to full is crucial before Kagutsuchi casts Vast Light / Infinite Light. In the event Endure fails to work, you may still be able to survive if you have a maxed health of at least 860+HP.

First Phase

Kagutsuchi can only activate Vast Light during a Full Moon phase, so make sure to heal up by moon phase 6/8 before the enemy shifts the moon phase to full.

Second Phase

During the second phase where the moon is permanently fixed at Full Moon, you’ll get a round of breather after Kagutsuchi casts Infinite Light. Make sure to top up your health during this 'breather' round.

Use Attack Buffs Until Limit is Reached

tarukaja

We recommend stacking up Tarukaja or Makakaja until the skill reaches its limit. Kagutsuchi is tanky and you'll need to maximize your damage output.

First Phase

Ideally, you'd want to cast buffs until the skill has reached its limit. Do this before the moon phase reaches Full Moon in the first phase, as Kagutsuchi will take only 50% damage.

Second Phase

Having attacks boosted to the max is also ideal in the second phase, as Kagutsuchi has around 40,000HP. Moreover, you need not worry about Dekaja during the second phase.

Cast Debilitate Until Limit is Reached

debilitate

Debilitate is the ideal debuff to have during this battle as it can lower all foes' Attack/Defense/Evasion/Hit Rate in a single turn. Cast this spell until it has reached its limit to maximize the effect it has on the enemy, especially during the Full Moon phase in Phase 1 of battle.

Alternatively, you can use Tarunda or War Cry to lower its Phys/Magic Attacks. Use Rakunda to lower its defense, or you can use Fog Breath or Sukunda as these debuffs will decrease its chances of dodging your attacks.

Best Buff and Debuff Skills

Have a Dedicated Healer that Has Multi-Target Healing

prayer

Summon a demon that has Prayer, Mediarahan, or Mediarama, so your party can restore HP as you move along the battle. This will be ideal especially in situations wherein you have no available Recovery items on hand.

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