Table of Contents
Guide on How to Defeat Fratricidal Destroyer Seth
The Fratricidal Destroyer (Seth) is the first Powerful Shadow mini-boss enemy the Phantom Thieves must defeat in Persona 5 Strikers (or Persona 5 Scramble). The mini-boss is encountered at Sendai’s Jail, a metaverse version of Sendai, a city in Japan’s Tohoku Region. This shadow can only be encountered when Powerful Shadow Requests are made available by Lavenza starting on 8/24.
All Powerful Shadows | Sendai’s Jail |
Clear All Powerful Shadow Requests
Below is a list of requests that unlocks the Reaper secret boss battle. The Metatron request is locked in the post-game also so you need to clear the main story first. We recommended defeating Powerful Shadows when you already unlocked Wolf as a party member in the game.
Request | Powerful Shadow | Persona Boss | Location | Availability |
---|---|---|---|---|
“An Ebon God Descends” | Fratricidal Destroyer | Seth | Sendai Jail | Base Game |
“The Hound of Hades Howls” | Guard Dog of Hades | Cerberus | Osaka Jail | Base Game |
“Make the Way for the Frozen King” | Monarch of Snow | King Frost | Sapporo Jail | Base Game |
“Halt the Strutting Little Imp” | Fallen Snowman | Black Frost | Shibuya Jail | Base Game |
“Dragon Slayer Enters the Fray” | Brilliant Dragonslayer | Siegfried | Kyoto Jail | Base Game |
“The Writhing Nightmare Rising” | Throbbing King of Desire | Mara | Okinawa Jail | Base Game |
“Angel of Contracts Descends” | Shadow of God | Metatron | Tree of Knowledge | Post-Game |
“Knocking on Death’s Door” | Reaper | Reaper | Okinawa Jail | Post-Game |
Post-Game Guide | Post-Game Walkthrough |
Trophies
Trophy | How to Unlock |
---|---|
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Clear a request. |
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Clear 50 requests. |
Fratricidal Destroyer Seth Information
Here is a breakdown of the mini-boss’ stats, strengths and weaknesses, and skills:
Fratricidal Destroyer Seth Stats
Stagger Gauge | 8 |
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Availability | August 24th |
Recommended Level | Level 45 or higher |
EXP Rewards | 10,000 exp (Base Game) |
Yen Rewards | 39,000 yen (Base Game) |
Other Rewards | Beastly Was-Sceptre Fusion Item (Seth Persona Fusion), HP Recovery Item x1, Status Recovery Item x1 |
Fratricidal Destroyer Seth Strength and Weaknesses
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– | – | Resist | – | – | Resist |
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Technical |
– | – | Weak | Resist | – | Weak |
Fratricidal Destroyer Seth Skills
Skill | Skill Effect |
---|---|
One-shot Kill | Severe Gun damage to a narrow range. High Critical Rate. |
Eigaon | Heavy Curse damage to a narrow range. |
Masukukaja | Buff party agility for a certain period of time. |
Cripple | Strengthen Gun attacks by 50%. |
Down Technique | Improves rate for decreasing Down Gauge when inflicting critical hits. |
Fortify Spirit | Lower susceptibilities to all ailments. |
Riot Gun | Severe Gun damage to a wide range. |
*Boss attacks are based from the Persona version of the boss. To be updated if needed.
Fratricidal Destroyer Seth Party Build
Here is our recommended party member setup against the boss. You can choose other party members except for Panther and Mona.
Member | Persona | Essential Skills | Notes |
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Damage: Kouga/Kougaon or Makouga/Makougaon (Bless), Bufula/Bufudyne or Mabufula/Mabufudyne (Ice), Freila/Freidyne or Mafreila/Mafreidyne (Nuke) | Has access to Bless, Ice, and Nuclear skills from other Personas obtained or fused. Can also play the role of healer, buff caster, and debuff caster. Can use Amrita Drop to cure allies when inflicted with status or mental ailments. |
Recovery: Diarama/Diarahan or Mediarama/Mediarahan, Recarm or Samercarm, Amrita Drop or Amrita Shower | |||
Buff: Matarukaja, Marakukaja, Masukukaja, Dekaja, Heat Riser, Charge, Concentrate | |||
Debuff: Tarunda, Rakunda, Sukunda, Debilitate | |||
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Damage: Tempest Slash and Myriad Slashes (Phys), Bufula/Bufudyne or Mabufula/Mabufudyne (Ice) | Has access to Physical and Ice skills that Seth does not have resistances against. Inflicts Freeze status ailment on Seth that causes it to take increased damage from Physical, Gun, and Nuclear attacks. Can use a buff skill like Masukukaja to boost allies evasion/critical evasion in battle. |
Buff: Sukukaja or Masukukaja | |||
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Damage: Sledgehammer or Flash Bomb (Phys), Freila/Freidyne or Mafreila/Mafreidyne (Nuke) | Has access to Physical and Nuclear skills that Seth does not have resistances against. Also, Nuclear attacks from Queen can deal Technical damage to Seth when afflicted with Freeze status ailment. Can use a buff skill like Marakukaja to boost allies defense power in battle. Can also use healing skills. |
Recovery: Diarama/Diarahan or Mediarama/Mediarahan | |||
Buff: Rakukaja or Marakukaja | |||
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Damage: Kouga/Kougaon or Makouga/Makougaon (Bless) | Has access to Bless skills which Seth is weak against. Can use a debuff skill like Rakunda to reduce the enemy defense power. Can also use healing skills. |
Recovery: Diarama/Diarahan or Mediarama/Mediarahan, Recarm or Samarecarm | |||
Debuff: Rakunda or Marakunda |
Persona Compendium | Phantom Thieves Battle Ratings |
Fratricidal Destroyer Seth Strategies
Here is a breakdown of the battle strategies against the mini-boss:
Carry HP and SP Recovery Items
Before engaging the boss, bring a stock of HP and SP recovery items. These items can be bought from accessible vending machines, food stands, store, and restaurants. You can also buy ingredients from Sophia’s Shop and other real world stores. Then, cook these ingredients for additional HP and SP items through Joker’s Kitchen.
Land Debuffs
Start the battle by landing multiple debuffs on Seth. Debuffs can be in the form of attack power decrease (Tarunda), defense power decrease (Rakunda), and evasion/critical evasion power decrease (Sukunda). These debuffs can be accessed by Joker (from Arsene and other Personas) and Sophie. Another option is by using Debilitate for an all-in-one debuff. This special debuff can be accessed by Joker (from other Personas).
Cast Buffs
Follow-up the debuffs with party members buffs. Buffs can be in the form of attack power increase (Tarukaja or Matarukaja), defense power increase (Rakukaja or Marakukaja), and evasion/critical evasion increase (Sukukaja or Masukukaja). These buffs can be accessed by Joker (from other Personas), Fox, and Queen. Another option is by using Heat Riser for an all-in-one buff. This special buff can be accessed by Joker (from other Personas) only.
Dodge Gun and Curse Attacks
Observe the boss’ upcoming moves and evade upcoming Gun and Curse attacks targeted to your character. Seth’s gun attacks has high critical rate so it could down your character immediately. Use Amrita Drop or Amrita Shower to cure the status effect.
Use Bless Attacks
Seth is weak to Bless attacks which Joker and Sophie can capitalize. Continue on using elemental attacks in order to break the shields and stagger the boss. Make use of narrow range elemental skills if you’re close and wide range elemental skills if you’re far from the boss.
Capitalize on Terrain Gimmicks
If Seth is beside the ice crystal or broken pillar, you can use a Phantom Dash to deal additional physical damage to the boss. You may also inflict status effects such Freeze to the boss by chance.
Deal Technical Damage using Phys, Gun, and Nuke Attacks
When the boss is inflicted with a status ailment such as Freeze, deal technical damage by using Physical, Gun, and Nuclear attacks. Switch between Joker, Fox, and Queen to avoid running out of HP.
Unleash Showtime Attacks
While engaging Seth, you may build up your showtime gauge. When it’s available, unleash the showtime attack against the boss. If Joker’s showtime attack is available, make sure he has the right Persona that can capitalize on the weakness of the boss. Also, there is a consumable item that will quickly boost your Showtime gauge build up so feel free to use it against the boss.
← All Powerful Shadows | Cerberus Powerful Shadow → |
Other Bosses

All Jail Monarchs
Shibuya Jail Monarch | Sendai Jail Monarch | Sapporo Jail Monarch |
Kyoto Jail Monarch | Osaka Jail Monarch | Jail of the Abyss Accomplice |
False God Demiurge | - | - |
Lock Keepers
Shibuya Jail Lock Keeper | Sendai Jail Lock Keeper | Sapporo Jail Lock Keeper |
Okinawa Jail Lock Keeper | Osaka Jail Lock Keeper | - |
Powerful Shadows
Dire Shadows
Killer Teddybear Bugbear | Snake King Raja Naga | Harlot of Desire Lilith |
Wandering Reviver Nebiros | Sun's Emissary Yatagarasu | War-Hungry Horseman Eligor |
Dark Sun Mithras | Heavenly Punisher Archangel | - |
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