Monad Chambers is an optional end game dungeon with powerful bosses in Episode Aigis of Persona 3 Reload (P3R). Read on to learn how to unlock the Monad Chambers, all the bosses found in the Monad Chambers, and how to unlock Joker's boss fight.

What Are Monad Chambers?

Contains Difficult End Game Bosses

The Monad Chambers is an optional dungeon that the player can tackle to challenge the limits of their team and builds. It is populated by 4 difficult end game bosses and one super boss that players familiar to the Persona series will immediately recognize.

The utmost preparation is required to defeating every boss that you'll encounter in the said dungeon, recommended to players whose party is level 90 and above and have completed the game.

Source of Rare Crafting Materials

Defeating the bosses will reward you with certain materials that you can use at the Antique Shop to craft rare and unique gear that can make your team stronger. Consider challenging the bosses if you wish for more ways to get better gear for your team!

How to Unlock Monad Chambers

Complete Colosseo Purgatorio

Monad Chambers is unlocked a few cutscenes after the completion of Colosseo Purgatorio. Once the player returns to the Abyss of Time to face the final boss, the party will notice another door present within the area.

Monad Chambers Boss List

1. Immortal Gigas and Visceral Maya
2. Heat Balance, Sky Balance, and Primitive Idol
3. El Dorado Beast and Amorous Snake
4. Brilliant Cyclops and Change Relic

Immortal Gigas and Visceral Maya

Boss	Weaknesses and Resistances
Immortal Gigas	Weak: N/A Resists: Wind Null: Light Drain: N/A Repel: Strike, Bash, Pierce
Visceral Maya	Weak: Fire Resists: Ice, Wind Null: Dark Drain: Elec Repel: N/A

A Support + Tank Damage Dealer lineup. The Visceral Maya's roles in this fight is to buff up the Gigas with attack and defense buffs while the Gigas will focus on using physical AoE attacks on your team. Debuffs and multi target attacks are recommended as you'll want to reduce the fight's difficulty by dispatching the Mayas.

Immortal Gigas and Visceral Maya Boss Guide

Heat Balance, Sky Balance, and Primitive Idol

Boss	Weaknesses and Resistances
Primitive Idol	Weak: N/A Resists: Fire, Ice, Wind, Elec Null: N/A Drain: N/A Repel: Light, Dark
Sky Balance	Weak: Fire, Ice Resists: Slash Null: N/A Drain: N/A Repel: Elec, Wind
Heat Balance	Weak: Elec, Wind Resists: Slash Null: N/A Drain: N/A Repel: Fire, Ice

We highly recommend bringing individual elemental attacks to target the balance's weaknesses. This can give you additional turns during the fight while slowly whittling down the damage dealer's HP.

It is also useless to counter the Balance's elemental attacks as the Primitive Idol will immediately break your team's resistances to the four elemental types at the start of the fight.

Primitive Idol Boss Guide

El Dorado Beast and Amorous Snake

Boss	Weaknesses and Resistances
El Dorado Beast	Weak: N/A Resists: All Null: N/A Drain: N/A Repel: N/A
Amorous Snake	Weak: Wind Resists: Ice Null: N/A Drain: Fire Repel: Light

A battle of attrition where the Amorous Snake will be an easy target but it can use a 2000 HP Life Drain on the El Dorado Beast while the Beast is extremely durable and can regenerate 800 HP per turn passively.

Make sure to always deal 2000 damage to the Amorous Snake every turn to make it drain HP from the beast, otherwise, the beast will be able to regenerate all damage it can take but you also must not deal more than that as you can potentially kill the snake.

Killing the Snake will make the fight near impossible to complete due to the El Dorado Beast's durability.

El Dorado Beast Boss Guide

Brilliant Cyclops and Change Relic

Boss	Weaknesses and Resistances
Brilliant Cyclops	Weak: N/A Resists:Strike, Pierce Null: N/A Drain: Ice, Elec, Wind Repel: N/A
Change Relic	Weak: Elec Resists: Fire, Ice Null: Light, Dark Drain: N/A Repel: N/A

The Change Relic is severely weaker in terms of durability than the Cyclops and both will be fighting you with their elemental attacks. However, you must avoid using AoE attacks and killing the Change Relic as doing so will change the Brilliant Cyclops' pattern.

If you kill the Change Relic, the Brilliant Cyclops will start using Concentrate then Megidolaon every turn which can most of your party members in one turn, making the fight more difficult. However, if you can survive, it can be easier to deal with one boss instead of two.

Brilliant Cyclops Boss Guide

Monad Chamber Secret Boss

Joker Boss Fight

Joker is Episode Aigis' super boss and it is arguably the most difficult boss in the entire game, with the base game included. As other Persona protagonists, he's capable of using multiple Personas in combat which will change his resistances while also being capable of dishing out huge amounts of damage per turn.

How To Unlock Joker Boss Fight

Monad Chambers Tips

Gear Up For Post Game

If you want to approach the Monad Chamber, be sure that your party is ready for post game. Reaching Level 99 is the bare minimum if you wish to complete these stages as these enemies will still defeat an unprepared late game team.

Farm the Reaper to Get Experience Points Fast

The Reaper is a great source of experience points as defeating it while getting an EXP card will net you half a million points worth of experience points in one fight. He is also easy to defeat with the right strategy or Theurgy (Armageddon) and can be a great way to bump up your teammate's levels or even your own Personas!

How to Beat the Reaper

Max Out Your Compendium and Get Armageddon

Getting all of your Theurgies and all possible Personas you can use is crucial for the Monad Chamber. These enemies have HP pools in the tens of thousands while having the potential to defeat your whole party in one turn. Being able to choose among your whole Persona compendium is recommended to be able to create the best possible team you can make.

Persona 3 Reload Related Guides

All Tips and Tricks

Episode Aigis

All Episode Aigis Tips and Tricks
What Carries Over From Base Game	How To Start Episode: Aigis
Differences From the Answer	How to Transfer Save Data
The Abyss of Time Guide	How to Get Lady's Stool
Elizabeth's Request (Episode Aigis)	All Episode Aigis ATheurgy

Daily Life Tips

All Daily Life Tips and Tricks
Social Stats Guide	Quizzes and Exam Answers
How to Use the Computer	Fortune Telling Services
How to Increase Courage	How to Increase Charm
How to Increase Academics	What Happens if You Sleep
How to Use the Kitchen	Film Festival Dates and Results
All Part Time Jobs

Social Link Tips

All Social Links Tips and Tricks
Fix Reversed Social Links	All Romance Options
Best Social Links to Max First	All Clubs You Can Join and Their Schedules

Exploration and Battle

All Tartarus Tips and Tricks
Battle System Guide	Tartarus Exploration Guide
Theurgy Skills Guide	How to Shift Guide
Moon Phases Guide	Status Ailments Guide
Shuffle Time Bonuses	How to Open Locked Chests
How to Summon the Reaper	All Characteristics and How to Get
Fusion Skills	How to Get All Major Arcana Cards
Great Clock Guide	How to Give Direct Commands
Monad Chambers Guide

Persona Fusion and Leveling Tips

All Persona Fusion and Leveling Tips and Tricks
Fusion Guide: Normal and Triangle Fusion	Can You Inherit Skills?
All the Best Personas	Fusion Accidents
How to Increase Persona Slots	How to Skip Fusion Animation

Farming Guides

All Farming Tips and Tricks
Twilight Fragments Farming Guide	Gem Farming Guide
Money Farming Guide	How to Level Up Fast

Rare Enemy Guides

Rare Enemy Weaknesses
Rare and Greedy Shadows	Wealth Hands
Precious Hands	Supreme Hands
Ethereal Hands	Luxury Hands
Miracle Hands	Glorious Hands

Miscellaneous Tips and Tricks

All Miscellaneous Tips and Tricks
Best Names for the Protagonist	How Long to Beat
Can You Change Soundtracks?	Best Difficulty Settings
Can You Still Use the Bathroom?	All Trophies and Achievements
Missing Persons Guide	How to Fix the Broken Machine
Can You Save Shinjiro?	Ghost Investigation Questions and Answers
How to Use Rewind	How is Experience Shared?
How to Escape the Hot Springs	Does Persona 3 Reload Have Auto Save?
New Game Plus Guide	Advanced Tips and Tricks