This is a walkthrough for the Cocytus Door in Persona 3 Reload (P3R) Episode Aigis DLC. Read on to see a complete guide to the shadows and bosses, what you can unlock, and other tips to clear the door!

Cocytus Walkthrough

List of Bosses in Cocytus

Cocytus Guardian Bosses

Cowardly Maya, Crying Table, and Wondrous Magus

There are no gimmicks in this fight, just target each enemy’s weakness and then go for an All-Out Attack. It's best to bring Ken and Koromaru as they can both cover the elemental weaknesses of at least two enemies without being weak to theirs.

The most threatening enemy is the Wondrous Mage, as it can use Concentrate. Akihiko is not recommended for this fight, as he’s weak to Ice and can fall quickly to concentrated Ice attacks.

Cocytus Guardian Boss Guide

Cocytus Monad Bosses

Phantom Mage

Phantom Mage is one of the Monad Door bosses located in Cocytus. They have a weakness to Wind and specialize in Light. Bring characters like Yukari and Metis, while also avoiding equipping Personas weak to Light to make this fight is significantly easier.

Phantom Mage (Cocytus) Boss Guide

Elegant Mother

Elegant Mother is another one of the Monad Door bosses in this area. They're accompanied by a Muttering Tiara and Maniacal Book during this fight, so make sure to take care of them first.

This boss will also drop the Lady's Stool required to complete Elizabeth Request 30!

Elegant Mother (Cocytus) Boss Guide

Red Sigil

Red Sigil is the last boss you can encounter in this area's Monad Doors. It's fought alongside a Blue Sigil that casts buffs, debuffs, and Ice Attacks. Besides that, the Red Sigil likes to use Fire Attacks and Provoke, so make sure to bring Dis-Rages to cure any Enraged allies.

Red Sigil (Cocytus) Boss Guide

List of Regular Shadows in Cocytus

List of All Shadows and Weaknesses

Shadow	Weak	Resist	Null	Drain	Repel
Blue Sigil		-	-		-
Curse Dice				-	-
Dancing Hand		-		-	-
Dogmatic Tower			-	-	-
Elegant Mother					-
Heat Balance			-	-	-
Imprudent Maya	-	-	-	-	-
Laughing Table			-	-	-
Maniacal Book				-	-
Muttering Tiara			-	-	-
Obsessed Cupid		-		-	-
Precious Hand		-	-	-	-
Steel Gigas			-	-	-
Trance Twins			-	-	-
Tranquil Idol				-	-
Venus Eagle			-	-	-

Tips and Tricks for Exploring Cocytus

Party Member Ranking

Rank	Character	Explanation
1	Ken	On top the usual Kouga, Arrow Rain, and Mahamaon, Ken will gain access to Mediarahan making him an amazing all-rounder. His characteristic on top of the limited resources is still amazing for quickly building up his Theurgy Gauge.
2	Koromaru	Since Koromaru and Junpei get introduced here, a lot of enemies here are weak to Dark and Fire skills. Koromaru can also learn Maragion along the way. Mamudoon will help you bypass some enemies and give you some room to breathe.
3	Yukari	Still the mainstay main healer but Ken does overshadow her since he also has Pierce attacks. Great endurance which helps her tank some hits from the boss.
4	Junpei	Kit is focused around Physical but you don't have Ambush to make use of the Technicals yet. If you have any party member with Revolution, he can pull his own weight.
5	Metis	Still mostly used for picking off enemies and hitting Ice weaknesses. Gets Garula along the way making her a convenient pick if you don't have Yukari in your party.
6	Akihiko	Again, a lack of available buffs makes Akihiko's Theurgy hard to charge. Still, keep him sufficiently levelled since the limited resources will have you swapping party members around.

Save Your Twilight Fragments

After beating the bosses in B9, you will have access to four locked chests. Two of these contain the items for Junpei's and Akihiko's Linked Episodes, so make sure to allot 2 Twilight Fragments for these.

How to Farm Twilight Fragments and All Locations

New Monad Doors

Cocytus will introduce you to the new Monad Doors where you can pick a route to battle. The difficulty will scale from left to right, left being the easiest and right being the hardest and the harder the door, the better the rewards.

Make sure to look at your team's current status and available SP before you choose which door. The easiest one will still drop an Arcana Card for Shuffle Time, so there's no shame in choosing it.

List of All Monad Bosses

Pick Up Some Dis-Poisons at the Medicine Shop

Before heading down, make sure to have some Dis-Poisons on hand due to the Elegant Mother Monad Boss and the Crying Table boss. Yukari still has Patra which can't cure Poison but can remove Charm and Rage.

Status Ailments Guide

Persona 3 Reload Related Guides

Walkthrough and All Chapters

Episode Aigis Abyss of Time Walkthroughs

Persona 3 Reload All Months Guide