Platinum Dice, Muttering Tiara and Silent Book are Monad Passage bosses in Persona 3 Reload. Read on to learn how to beat this boss, know its location, weaknesses and resistances, as well as the recommended party setup for defeating them.

Platinum Dice, Muttering Tiara and Silent Book Boss Overview

Platinum Dice Overview

Boss
Platinum Dice Arcana: Fortune
Date ＆ Location
Floor: 117F Tartarus Recommended Level: 40+

Muttering Tiara Overview

Boss
Muttering Tiara Arcana: Priestess
Date ＆ Location
Floor: 117F Tartarus Recommended Level: 40+

Silent Book Overview

Boss
Silent Book Arcana: Priestess
Date ＆ Location
Floor: 117F Tartarus Recommended Level: 40+

Platinum Dice, Muttering Tiara and Silent Book Weaknesses and Strengths

Platinum Dice Weaknesses and Strengths

Slash				Strike				Pierce
Null				Normal				Normal
Fire			Ice			Electricity			Wind
Normal			Normal			Null			Normal
Light						Dark
Null						Null

Muttering Tiara Weaknesses and Strengths

Slash				Strike				Pierce
Normal				Normal				Normal
Fire			Ice			Electricity			Wind
Normal			Normal			Normal			Null
Light						Dark
Normal						Weak

Silent Book Weaknesses and Strengths

Slash				Strike				Pierce
Normal				Normal				Normal
Fire			Ice			Electricity			Wind
Normal			Null			Normal			Weak
Light						Dark
Normal						Normal

Platinum Dice, Muttering Tiara and Silent Book Recommended Party Setup

Character	Best Skills	Explanation
Protagonist	・Mudoon ・Mediarama ・Matarunda ・Rakunda ・Dekunda ・Assault Dive ・Crit Rate Boost ・Eiga	The Protagonist will play a fluid role in the battle, acting as healer, buffer, debuffer, and occasional support damage. He can kill Muttering Tiara with Mudoon, remove debuffs with Dekunda, as well as hit Platinum Dice with its weakness.
Yukari	・Garula ・Mediarama ・Recarm ・Sukunda ・Patra ・Me Patra	Yukari can cast Garula on Silent Book so it gets knocked down. She can also provide healing for your party with Mediarama, cure Distress with Me Patra, and revive anyone instakilled with Recarm.
Junpei	・Agilao ・Blade of Fury ・Assault Dive ・Counterstrike	Junpei is your primary damage dealer and will consistently deal damage. His Theurgy can deal a ton of damage to Silent Book to kill it quickly.
Koromaru	・Mudoon ・Revolution	Koromaru can deal Dark damage to Muttering Tiara and instakill it. He can also nullify Mamudoon and Maragion cast by Platinum Dice, as well as cast Revolution for increasing crit rates. He is the ideal party member to have in this fight.

Platinum Dice, Muttering Tiara and Silent Book Recommended Personas

Persona	Best Skills	Explanation
Girimekhala	・Mudoon ・Dekunda ・Crit Rate Boost	Girimekhala is the perfect Persona for this battle, since it can learn Mudoon to instakill Muttering Tiara and use physical skills to damage Platinum Dice.
Seiryu	・Mediarama ・Matarunda ・Rakunda ・Eiga	Seiryu is a great healer and debuffer for this battle, as well as being able to hit Muttering Tiara's weakness with Eiga.
Dakini	・Assault Dive ・Crit Rate Boost ・Strike Boost	Once Muttering Tiara has been dealt with, Dakini will be great for focusing physical damage on Platinum Dice.

How to Beat Platinum Dice, Muttering Tiara and Silent Book

The following tips can help you beat Platinum Dice, Muttering Tiara and Silent Book in battle.

1. Use Sylphid Aura Before Battle
2. Insta-Kill Muttering Tiara with Mudoon
3. Eliminate Silent Book with Theurgy
4. Cast Debuffs on Platinum Dice
5. Use Numbers to Predict Its Moves
6. Use Dekunda to Remove Debuffs
7. Be Ready to Cure Distress
8. Focus Physical Attacks on Platinum Dice

Use Sylphid Aura Before Battle

Sylphid Aura is Fuuka's navigational skill that buffs your party. Make sure to use it before engaging with this boss, as Muttering Tiara can heavily debilitate you with its debuffs, and Silent Book can get Platinum Dice's damage out of control with its constant buffs.

Insta-Kill Muttering Tiara with Mudoon

Before anything else, take out Muttering Tiara. It is weak to Dark magic so cast Mudo, or better yet, Mudoon to instantly kill Muttering Tiara before it even has a chance to do anything. If you don't have these skills, Eiha or Eiga will do well enough to knock it down for All-Out Attacks.

Eliminate Silent Book with Theurgy

After getting rid of Muttering Tiara, get rid of Silent Book as fast as possible with Theurgy attacks before it has a chance to buff Platinum Dice. If Theurgy attacks are not enough, hit it with Yukari's Garula since it is weak to Wind.
Theurgy Skills Guide

Cast Debuffs on Platinum Dice

Platinum Dice is the damage dealer in this boss fight, while Silent Book provides buffs to its ally and Muttering Tiara debuffs your party. Use debuffs like Tarunda, Rakunda, and Sukunda on Platinum Dice to negate Silent Book's buffs on it.

Use Numbers to Predict Its Moves

Rolled Die Number	Skill
1	Maragion
2	Mamudoon
3	Megidola
4	Herculean Strike
5	Gigantic Fist
6	Eerie Sound

Platinum Dice can cast all of the skills that the previous bosses Bronze Dice and Iron Dice could. Platnium Dice shows a die number that corresponds to its next attack. Keep an eye on the number it shows to anticipate whatever it will cast next.

List of All Skills

Protect Against Dark

Having a few Homunculus items on hand will be extremely helpful to stay alive from Platinum Dice's Mamudoon skill, which has a chance to instakill your whole party with Dark magic. If you're all out of Homunculus, having Band-Ace and Revival Bead items handy will also be helpful, as well as the skill Recarm.

Having Koromaru in your party is ideal, since he nullifies Dark magic. Equip Personas that block Dark Magic so the Protagonist will be safe from death.

Protect Against Fire

Platinum Dice casts Maragion, so keep Mitsuru out of this battle and make sure to include Junpei and Koromaru since they are strong against Fire. Equip a Persona that is also resistant to or nullifies Fire.

Use Dekunda to Remove Debuffs

Muttering Tiara casts Masukunda and Matarunda, which lowers your party's accuracy/evasion and attack damage, which is very debilitating. Cancel this out with the Dekunda skill or a Dekunda Gem.

How to Get Dekunda Gem

Be Ready to Cure Distress

Platinum Dice casts Eerie Sound, which may inflict Distress on your whole party. This is easily cured with a Me Patra skill, which Yukari learns. You can also alternatively use Me Patra Gems or Patra Gems

Status Ailments Guide

Focus Physical Attacks on Platinum Dice

Only after you've defeated Muttering Tiara and Silent Book can you finally focus attack on Platinum Dice. Keep on using Physical skills on Platinum Dice, since it has no weaknesses. Hope for critical hits so you can deal more damage with All-Out Attacks.

Persona 3 Reload Related Guides

List of All Bosses

All Episode Aigis Bosses

Mini-Bosses
Wrathful Book	Wondrous Magus	Harem & Natural Dancer
Harmony Giant	Frivolous Maya	Avenger Knight
Spastic Turret & Slaughter Drive	Acheron Seeker & Ice Raven	Killer Twins
Eternal Sand	Onnen Musha	Neo Minotaur
Story Bosses
Metis	??? (Shadow Protagonist)	Akihiko and Ken
Junpei and Koromaru	Yukari and Mitsuru	Erebus
Super Bosses
Joker	Reaper	-
Monad Door Bosses
Phantom Mage (Cocytus)	Elegant Mother (Cocytus)	Red Sigil (Cocytus)
Chaos Cyclops (Caina)	Eternal Eagle (Caina)	Nemean Beast (Caina)
Judgement Sword (Antenora)	Grand Magus (Antenora)	Minotaur III (Antenora)
Emperor and Adamant Beetle	World Balance (Ptolomea)	Death Castle (Ptolomea)
Crazy Twins (Ptolomea)	Eternal Sand (Judecca)	Void Giant (Judecca)
Vehement Idol (Judecca)	Rampage Drive (Judecca)	Phantom King (Empyrean)
Fanatic Tower (Empyrean)	Intrepid Knight (Empyrean)	Reckoning Dice (Empyrean)
Monad Chamber Bosses
Immortal Gigas and Visceral Maya	Primitive Idol	El Dorado Beast
Brilliant Cyclops	-	-

List of Episode Aigis DLC Bosses

All Story Bosses

Story Bosses
Priestess	Emperor ＆ Empress	Hierophant
Lovers	Chariot ＆ Justice	Hermit
Strength ＆ Fortune	Jin & Takaya	Hanged Man
Chidori Yoshino	Jin Shirato	Takaya Sakaki
Nyx Avatar

List of All Story Bosses

All Guardian Bosses

Tartarus Guardians
Ruthless Ice Raven	Barbaric Beast Wheel	Swift Axle
Will O Wisp Raven	Disturbing Dice	Clairvoyant Relic
Servant Tower	Lascivious Lady	Fleetfooted Cavalry
Ochlocratic Sand	Heretic Magus	Arcanist Decapitator
Tome of Atrophy ＆ Deviant Convict	Controlling Partner ＆ Dependent Partner	Venomous Magus
Bloody Maria ＆ Executioner's Crown	Imposing Skyscraper	Rampaging Sand ＆ Heartless Relic
Raging Turret	Terminal Table	Jotun of Authority
Isolated Castle	Pagoda of Disaster	Dancing Beast Wheel
Demented Knight	Cruel Greatsword	Invigorated Gigas
Cultist of the Storm	Merciless Judge ＆ Executive Greatsword	Chaos Panzer
Icebreaker Lion ＆ Luckless Cupid	Blazing Middle Sibling, Deadly Eldest Sibling ＆ Voltaic Youngest Sibling	Scornful Dice
Minotaur Nulla	Obsessive Sand	-

List of All Guardian Bosses

All Superbosses

Superbosses
Reaper	Elizabeth

List of All Superbosses

All Monad Bosses

Monad Passage Bosses
Cowardly Maya	Rampage Drive, Shouting Tiara and Magical Magus	Bronze Dice ＆ Muttering Tiara
Iron Dice ＆ Silent Book	Platinum Dice, Muttering Tiara and Silent Book	Dogmatic Tower
Natural Dancer	Vehement Idol	Minotaur II
Haunted Castle ＆ Spiritual Castle	Intrepid Knight ＆ Change Relic	Devious Maya and Amorous Snake
Heat, Sky, Light, and Omnipotent Balance	Phantom Master and Morbid Book	Hallowed Turret
Musha Squad	Shadow of the Void	-
Monad Door Bosses
Elegant Mother	Phantom Mage	Red Sigil
Nemean Beast	Eternal Eagle	Chaos Cyclops
Judgment Sword	Minotaur III	Grand Magus
Crazy Twins	Emperor Beetle	Death Castle
Void Giant	World Balance	Eternal Sand
Rampage Drive	Phantom King	Fanatic Tower
White, Black, Pink, Silver, and Gold Hand	-	-

List of All Monad Bosses