Bosses
Trial of the Astrolabe difficulty scaling, AC event boss history, and every named story/Mementos boss.
Bosses
P5X bosses split into three groups: 12 Trial of the Astrolabe bosses (endgame trial, difficulty level 5, score-based rewards up to 250,000 points), 6 past AC (limited-time) event bosses that have all ended, and the named bosses tied to the main story Palaces and Mementos Paths — Shadow Kiuchi, Shadow Miyazawa, Matador, Thoth and more.
Exclusive: the difficulty multiplier and score-reward tiers below come straight from the game's own data/UnionBossDetail and ACBossDetail (game client data).
Trial of the Astrolabe bosses
After the boss takes a certain amount of damage, it will enter the next phase and become Weakened for two turns. While Weakened, it will be unable to fight back and its damage taken will greatly increase.
Dominion
Difficulty: 5
Damage multiplier: 1 → 1.5 → 2 → 3 → 4×
Score reward tiers: 50,000 / 100,000 / 150,000 / 200,000 / 250,000
Kohryu
Difficulty: 5
Damage multiplier: 2 → 3 → 4 → 6 → 8×
Score reward tiers: 25,000 / 50,000 / 75,000 / 100,000 / 125,000
Oberon
Difficulty: 5
Damage multiplier: 1 → 1 → 1 → 1 → 1×
Score reward tiers: 50,000 / 100,000 / 150,000 / 200,000 / 250,000
Surt
Difficulty: 5
Damage multiplier: 1 → 1.5 → 2 → 3 → 4×
Score reward tiers: 50,000 / 100,000 / 150,000 / 200,000 / 250,000
Vishnu
Difficulty: 5
Damage multiplier: 1 → 1.5 → 2 → 3 → 4×
Score reward tiers: 50,000 / 100,000 / 150,000 / 200,000 / 250,000
Atavaka
Difficulty: 5
Damage multiplier: 2 → 3 → 4 → 6 → 8×
Score reward tiers: 25,000 / 50,000 / 75,000 / 100,000 / 125,000
Yatsufusa
Difficulty: 5
Damage multiplier: 2 → 3 → 4 → 6 → 8×
Score reward tiers: 25,000 / 50,000 / 75,000 / 100,000 / 125,000
Mara
Difficulty: 5
Damage multiplier: 1 → 1.5 → 2 → 3 → 4×
Score reward tiers: 50,000 / 100,000 / 150,000 / 200,000 / 250,000
Nidhoggr
Difficulty: 5
Damage multiplier: 1 → 1.5 → 2 → 3 → 4×
Score reward tiers: 50,000 / 100,000 / 150,000 / 200,000 / 250,000
Baal
Difficulty: 5
Damage multiplier: 2 → 3 → 4 → 6 → 8×
Score reward tiers: 25,000 / 50,000 / 75,000 / 100,000 / 125,000
Kartikeya
Difficulty: 5
Damage multiplier: 1 → 1.5 → 2 → 3 → 4×
Score reward tiers: 50,000 / 100,000 / 150,000 / 200,000 / 250,000
Oumitsunu
Difficulty: 5
Damage multiplier: 2 → 3 → 4 → 6 → 8×
Score reward tiers: 25,000 / 50,000 / 75,000 / 100,000 / 125,000
Past AC event bosses
Dvesha
2024-04-27 05:00:00 → 2025-08-04 10:59:59
Ended
Irshya
2025-08-04 11:00:00 → 2025-08-21 10:59:59
Ended
Shadow of Lust
2024-09-26 05:00:00 → 2024-10-10 05:00:00
Ended
Shadow of Vanity
2024-09-26 05:00:00 → 2024-10-10 05:00:00
Ended
Moha
2024-09-26 05:00:00 → 2024-10-10 05:00:00
Ended
Avidya
2024-10-10 05:00:00 → 2024-11-07 05:00:00
Ended Named story & Mementos bosses (reference)
Shadow Kiuchi
Shadow Miyazawa
Shiki-Ouji
Kikuri-Hime
Arahabaki
Zouchouten
Shadow Katayama
Hariti
Kumbhanda
Shadow Akashi
Matador
Ongyo-Ki
Thoth
Daisoujou
Trumpeter
Names sourced from the official Persona 5: The Phantom X in-game content list, cross-checked 02/08/2026 — not covered by the numeric data above.
More bosses
Boss Combat Modifiers
Special mechanics tied to specific bosses — enrage stacks, shield bonuses, affinity shifts — pulled straight from the game's own boss-affix data.
Showing 70 of 541 boss-specific modifier lines found in the game files — picked to spread across as many different bosses as possible instead of piling onto just one or two. The rest are held back for now.
Show all 70 boss modifiers
| Boss | Effect | Japanese original |
|---|---|---|
| Barbaric Beast Wheel | When Wheel's Afterimage is present, Barbaric Beast Wheel's affinities are changed. | When Wheel's Afterimage is present, Barbaric Beast Wheel's affinities are changed. Japanese text not available in the source data for this entry — English shown instead. |
| Bishamonten | Bishamonten's Parasol of Chaos changes allies' affinities to Null. Bishamonten's Attack is increased by 25%. | ビシャモンテンの『混元傘』により、味方の属性相性が『無効』に変わる。ビシャモンテンの攻撃力が２５%上昇する。 |
| Byakko | Prey's damage is increased by 20%, and Byakko's final Attack is increased by 10%. | Prey's damage is increased by 20%, and Byakko's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Dancer of Dreams | Dancer of Dreams's Punishing Whip decreases the target's Defense by 50% more for 2 turns. | Dancer of Dreams's Punishing Whip decreases the target's Defense by 50% more for 2 turns. Japanese text not available in the source data for this entry — English shown instead. |
| Dvesha | When Dvesha's Nose is present, all of Dvesha's Mouth's affinities change from Resist to Null. | ドヴェーシャの鼻梁が存在する時、ドヴェーシャの口腔の全属性相性が耐性から無効になる。 |
| Dvesha | When all of Dvesha's parts are revived, its healing effects are increased. | ドヴェーシャの全ての部位が修復すると、回復量が上昇する。 |
| Dvesha | Dvesha's Nose can attack even without twitching. | ドヴェーシャの鼻梁は震えなくても攻撃できる。 |
| Dvesha | The revival cooldown time for all of Dvesha's parts is shortened. | ドヴェーシャの全ての部位の『修復』のクールタイムが短縮される。 |
| Elucidator | Elucidator's stat buff effects are increased by 30% and weakness damage is increased by 20%. | 『解明』ロールの味方の『ステータス上昇』効果が３０%上昇し、さらに弱点へのダメージが２０%上昇する。 |
| Gabriel | The final damage taken increase effect from Gabriel's Annunciation is increased by 10%, and Gabriel's final Attack is increased by 10%. | The final damage taken increase effect from Gabriel's Annunciation is increased by 10%, and Gabriel's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Gabriel | The rate of inflicting Forget from Gabriel's Annunciation is increased. Gabriel's max HP is increased by 20%, and it gains 1 more Down Point. | The rate of inflicting Forget from Gabriel's Annunciation is increased. Gabriel's max HP is increased by 20%, and it gains 1 more Down Point. Japanese text not available in the source data for this entry — English shown instead. |
| Gabriel | Gabriel's Annunciation inflicts Forget on the target. Gabriel's max HP is increased by 120%, and it gains 3 more Down Points. | Gabriel's Annunciation inflicts Forget on the target. Gabriel's max HP is increased by 120%, and it gains 3 more Down Points. Japanese text not available in the source data for this entry — English shown instead. |
| Horus | The final damage increase from Sun God's Power is increased by 20%. Horus's Attack is increased by 10%. | 『太陽神の力』の最終ダメージ上昇効果が２０%上昇し、ホルスの攻撃力が１０%上昇する。 |
| Horus | Every 4 Sun God's Blessing stacks are converted into 1 Sun God's Power stack. Horus's max HP is increased by 20%. | 『太陽神の祝福』４つごとに『太陽神の力』１つに変換され、ホルスの最大ＨＰが２０%上昇する。 |
| Horus | Every 3 Sun God's Blessing stacks are converted into 1 Sun God's Power stack. Horus's max HP is increased by 50%. | 『太陽神の祝福』３つごとに『太陽神の力』１つに変換され、ホルスの最大ＨＰが５０%上昇する。 |
| Horus | Every 2 Sun God's Blessing stacks are converted into 1 Sun God's Power stack. Horus's max HP is increased by 100%. | 『太陽神の祝福』２つごとに『太陽神の力』１つに変換され、ホルスの最大ＨＰが１００%上昇する。 |
| Irshya | When Irshya's guards are present, all of its affinities change from Resist to Null. | 護衛が存在する時、シンニの全属性相性が耐性から無効になる。 |
| Isis | Diarama's healing is increased by 20%. Isis's Attack is increased by 10%. | 『ディアラマ』の回復量が２０%上昇し、イシスの攻撃力が１０%上昇する。 |
| Jikokuten | The shield from Jikokuten's Blade of Sanctuary is increased by 25%, and Jikokuten's max HP is increased by 20%. | ジコクテンの『剣を以て国を護る』によるシールド量が２５%上昇し、ジコクテンの最大ＨＰが２０%上昇する。 |
| Jikokuten | Targets with a shield from Jikokuten's Blade of Sanctuary gain 10% increased Attack. Jikokuten's Attack is increased by 10%. | ジコクテンの『剣を以て国を護る』によるシールド効果を獲得している対象の攻撃力が１５%上昇し、ジコクテン自身の攻撃力が１０%上昇する。 |
| Katayama | Katayama's Third Stage | Katayama's Third Stage Japanese text not available in the source data for this entry — English shown instead. |
| Kohryu | Collapse's damage dealt is increased by 20%, and Kohryu's final Attack is increased by 10%. | Collapse's damage dealt is increased by 20%, and Kohryu's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Kohryu | Every 5 stacks of Kohryu's Influence are converted to 1 True Dragon's Might stack, and Kohryu's max HP is increased by 20%. | Every 5 stacks of Kohryu's Influence are converted to 1 True Dragon's Might stack, and Kohryu's max HP is increased by 20%. Japanese text not available in the source data for this entry — English shown instead. |
| Kohryu | Every 4 stacks of Kohryu's Influence are converted to 1 True Dragon's Might stack, and Kohryu's max HP is increased by 50%. | Every 4 stacks of Kohryu's Influence are converted to 1 True Dragon's Might stack, and Kohryu's max HP is increased by 50%. Japanese text not available in the source data for this entry — English shown instead. |
| Kohryu | Every 3 stacks of Kohryu's Influence are converted to 1 True Dragon's Might stack, and Kohryu's max HP is increased by 100%. | Every 3 stacks of Kohryu's Influence are converted to 1 True Dragon's Might stack, and Kohryu's max HP is increased by 100%. Japanese text not available in the source data for this entry — English shown instead. |
| Koumokuten | Targets marked by Koumokuten's Eye of Heaven take 10% increased damage. Koumokuten's Attack is increased by 10%. | コウモクテンの『天眼観世』でマークされた対象の被ダメージが１０%上昇する。コウモクテンの攻撃力が１０%上昇する。 |
| Koumokuten | The number of targets marked by Koumokuten's Eye of Heaven changes to 2. Koumokuten's max HP is increased by 120%. | コウモクテンの『天眼観世』でマークされる対象が２名に増加する。コウモクテンの最大ＨＰが８０%上昇する。 |
| Michael | The shield from Michael's Stronghold is increased by 20%, and Michael's final Attack is increased by 10%. | The shield from Michael's Stronghold is increased by 20%, and Michael's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Michael | The final damage decrease effect from Michael's Stronghold is increased by 10%. Michael's max HP is increased by 20%, and it gains 1 more Down Point. | The final damage decrease effect from Michael's Stronghold is increased by 10%. Michael's max HP is increased by 20%, and it gains 1 more Down Point. Japanese text not available in the source data for this entry — English shown instead. |
| Moha | Damage of Moha's Sphinxian Dive is greatly increased. | モーハの『獅身癡の猛撃』による与ダメージが大幅に上昇する。 |
| Monstrous Entity | The effects of the additional Diarahan and Maragidyne used at the end of Monstrous Entity's turn are greatly increased. | The effects of the additional Diarahan and Maragidyne used at the end of Monstrous Entity's turn are greatly increased. Japanese text not available in the source data for this entry — English shown instead. |
| Monstrous Entity | At the end of Monstrous Entity's turn, the Composure or Frenzy stacks required to activate additional skills are decreased by 2. | At the end of Monstrous Entity's turn, the Composure or Frenzy stacks required to activate additional skills are decreased by 2. Japanese text not available in the source data for this entry — English shown instead. |
| Nian Shou | The final damage increase from True Dragon's Might is increased by 25%. Nian Shou's final Attack is increased by 10%. | The final damage increase from True Dragon's Might is increased by 25%. Nian Shou's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Nian Shou | The critical damage taken decrease from Thunder's Protection is increased to 25%. Nian Shou's max HP is increased by 20%. | The critical damage taken decrease from Thunder's Protection is increased to 25%. Nian Shou's max HP is increased by 20%. Japanese text not available in the source data for this entry — English shown instead. |
| Nightmare Incarnation | Dreaming Desire's final damage taken decrease effect on Nightmare Incarnation is increased to 50%. | Dreaming Desire's final damage taken decrease effect on Nightmare Incarnation is increased to 50%. Japanese text not available in the source data for this entry — English shown instead. |
| Pale Rider | Horn of Death's damage up effect is increased by 15%. Pale Rider's max HP is increased by 20%. | 『死のラッパ』によるダメージ上昇効果が１５%に上昇し、ペイルライダーの最大ＨＰが２０%上昇する。 |
| Parvati | Parvati activates Mother's Revelation every turn. | パールヴァティは毎ターン『輝母の啓示』を発動する。 |
| Phoenix | Every 5 stacks of Phoenix's Hymn are converted to 1 Power of Nirvana stack, and Phoenix's max HP is increased by 20%. | Every 5 stacks of Phoenix's Hymn are converted to 1 Power of Nirvana stack, and Phoenix's max HP is increased by 20%. Japanese text not available in the source data for this entry — English shown instead. |
| Phoenix | Every 4 stacks of Phoenix's Hymn are converted to 1 Power of Nirvana stack, and Phoenix's max HP is increased by 50%. | Every 4 stacks of Phoenix's Hymn are converted to 1 Power of Nirvana stack, and Phoenix's max HP is increased by 50%. Japanese text not available in the source data for this entry — English shown instead. |
| Phoenix | Every 3 stacks of Phoenix's Hymn are converted to 1 Power of Nirvana stack, and Phoenix's max HP is increased by 100%. | Every 3 stacks of Phoenix's Hymn are converted to 1 Power of Nirvana stack, and Phoenix's max HP is increased by 100%. Japanese text not available in the source data for this entry — English shown instead. |
| Piggytron | At the end of Piggytron's turn, effects gained from Berserk are increased. | ピンクトロンがターン終了時に獲得する『狂暴』の効果が上昇する。 |
| Raphael | The final damage taken increase effect from Raphael's Balm is increased by 10%, and Raphael's final Attack is increased by 10%. | The final damage taken increase effect from Raphael's Balm is increased by 10%, and Raphael's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Raphael | The healing from Raphael's Balm is increased by 20%. Raphael's max HP is increased by 20%, and it gains 1 more Down Point. | The healing from Raphael's Balm is increased by 20%. Raphael's max HP is increased by 20%, and it gains 1 more Down Point. Japanese text not available in the source data for this entry — English shown instead. |
| Red Rider | Red Rider's Appeal to Retreat decreases the Highlight gauge by 80% of its current amount, and defeating Red Rider will not restore the Highlight gauge. | Red Rider's Appeal to Retreat decreases the Highlight gauge by 80% of its current amount, and defeating Red Rider will not restore the Highlight gauge. Japanese text not available in the source data for this entry — English shown instead. |
| Red Rider | Horn of War's duration is increased by 1 turn. Red Rider's max HP is increased by 120%. | 『戦争のラッパ』の持続時間を１ターン延長し、レッドライダーの最大ＨＰが８０%上昇する。 |
| Seiryu | Azure Storm's damage increase effect is raised to 10%, and Seiryu's max HP is increased by 20%. | Azure Storm's damage increase effect is raised to 10%, and Seiryu's max HP is increased by 20%. Japanese text not available in the source data for this entry — English shown instead. |
| Shiva | Shiva's Divine Dancer's Leap has greatly enhanced healing reduction and Defense decrease effects. | シヴァのスキル『舞神の跳躍』が与える回復効果低下と防御力低下効果を大幅に強化する。 |
| Suzaku | Pyre's continuous damage is increased by 20%, and Suzaku's final Attack is increased by 10%. | Pyre's continuous damage is increased by 20%, and Suzaku's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Suzaku | Suzaku's Feathers make 2 Shadows untargetable, and Suzaku's max HP is increased by 100%. | Suzaku's Feathers make 2 Shadows untargetable, and Suzaku's max HP is increased by 100%. Japanese text not available in the source data for this entry — English shown instead. |
| Uriel | The damage dealt to targets with elemental ailments from Uriel's Judgement is increased by 10%, and Uriel's final Attack is increased by 10%. | The damage dealt to targets with elemental ailments from Uriel's Judgement is increased by 10%, and Uriel's final Attack is increased by 10%. Japanese text not available in the source data for this entry — English shown instead. |
| Uriel | The damage of Uriel's Judgement is increased by 10%. Uriel's max HP is increased by 20%, and it gains 1 more Down Point. | The damage of Uriel's Judgement is increased by 10%. Uriel's max HP is increased by 20%, and it gains 1 more Down Point. Japanese text not available in the source data for this entry — English shown instead. |
| White Rider | The chance for White Rider's Brain Shake to inflict Brainwash is increased to 50%, and the duration is extended by 1 turn. | The chance for White Rider's Brain Shake to inflict Brainwash is increased to 50%, and the duration is extended by 1 turn. Japanese text not available in the source data for this entry — English shown instead. |
| White Rider | Horn of Pestilence's max HP down effects are increased by 15%. White Rider's Attack is increased by 10%. | 『疫病のラッパ』の最大ＨＰ低下効果が１５%に上昇し、ホワイトライダーの攻撃力が１０%上昇する。 |
| Wonder | Increase Wonder's Attack, Defense and max HP by 30%, and final damage by 50% | Increase Wonder's Attack, Defense and max HP by 30%, and final damage by 50% Japanese text not available in the source data for this entry — English shown instead. |
| Wonder | At the start of the foe's turn, inflict Dissolution, increasing final damage taken. Increase is equal to 25% of the ailment accuracy of the ally besides Wonder with the highest ailment accuracy, up to 40%. | At the start of the foe's turn, inflict Dissolution, increasing final damage taken. Increase is equal to 25% of the ailment accuracy of the ally besides Wonder with the highest ailment accuracy, up to 40%. Japanese text not available in the source data for this entry — English shown instead. |
| Wonder | Wonder's final damage is increased by 50%. Other allies' final damage is decreased by 80%. | 主人公の最終ダメージが５０%上昇し、他の味方の最終ダメージが８０%低下する。 |
| Wraith of Envy | When the Wraith of Envy activates Lock On, it locks on to 1 more target. The Wraith of Envy's max HP is increased by 100%. | 嫉欲を纏う邪霊が放つ『ロックオン』は、追加でもう１体をロックオンし、嫉欲を纏う邪霊の最大ＨＰが８０%上昇する。 |
| Wraith of Envy | The Wraith of Envy's Down Points are increased by 3 and its max HP by 20%. | 嫉欲を纏う邪霊のダウン値が３上昇し、最大ＨＰが２０%上昇する。 |
| Wraith of Envy | When the Wraith of Envy's Eye is destroyed, its revive turn count is decreased by 3 to 2, and its max HP is increased by 50%. | 嫉欲を纏う邪霊の目が撃破された後、復活ターン数が３ターンから２ターンに低下し、嫉欲を纏う邪霊の目の最大ＨＰが５０%上昇する。 |
| Zouchouten | The damage increase from Zouchouten's Growth of All Things is increased by 25%. Zouchouten's Attack is increased by 10%. | ゾウチョウテンの『万物の成長』による与ダメージ上昇効果が２５%上昇し、ゾウチョウテンの攻撃力が１０%上昇する。 |
| Zouchouten | Zouchouten's Growth of All Things also decreases damage taken by 5%. Zouchouten's max HP is increased by 20%. | ゾウチョウテンの『万物の成長』は、追加で５%のダメージ軽減を付与し、ゾウチョウテンの最大ＨＰが２０%上昇する。 |
| — | Increase ally's max HP by 20% and HP recovery by 20%. When a skill heals beyond max HP, deal damage to 1 random foe equal to 888% of surplus healing. | Increase ally's max HP by 20% and HP recovery by 20%. When a skill heals beyond max HP, deal damage to 1 random foe equal to 888% of surplus healing. Japanese text not available in the source data for this entry — English shown instead. |
| — | At the start of each ally's turn, gain a shield equal to 10% of their max HP, but lose 10% of their current HP. | At the start of each ally's turn, gain a shield equal to 10% of their max HP, but lose 10% of their current HP. Japanese text not available in the source data for this entry — English shown instead. |
| — | At the end of each ally's turn, 20% chance to activate an All-Out Attack. | At the end of each ally's turn, 20% chance to activate an All-Out Attack. Japanese text not available in the source data for this entry — English shown instead. |
| — | At the start of an ally's turn, permanently increase their damage dealt by 8%. Stacks up to 10 times. | At the start of an ally's turn, permanently increase their damage dealt by 8%. Stacks up to 10 times. Japanese text not available in the source data for this entry — English shown instead. |
| — | At the start of battle and at the end of each foe's turn, change 1 random affinity on the foe to Weak. | At the start of battle and at the end of each foe's turn, change 1 random affinity on the foe to Weak. Japanese text not available in the source data for this entry — English shown instead. |
| — | When an ally's current HP is low, damage taken is decreased. When HP is at 30%, gain maximum damage reduction of 36%. | When an ally's current HP is low, damage taken is decreased. When HP is at 30%, gain maximum damage reduction of 36%. Japanese text not available in the source data for this entry — English shown instead. |
| — | Assassin allies' damage is increased by 20%. | 『反抗』ロールの味方の与ダメージが２０%上昇する。 |
| — | At the start of battle and at the start of the foe's turn, the foe will gain a random Weak affinity (only the most recent Weak affinity is active). | At the start of battle and at the start of the foe's turn, the foe will gain a random Weak affinity (only the most recent Weak affinity is active). Japanese text not available in the source data for this entry — English shown instead. |
| — | At the end of the boss's turn, all allies are inflicted with Intimidation. When Intimidation is removed, all foes are inflicted with Intimidation. Intimidation: Increase final damage taken by 10%. Stacks up to 6 times. Lasts for 3 turns. | At the end of the boss's turn, all allies are inflicted with Intimidation. When Intimidation is removed, all foes are inflicted with Intimidation. Intimidation: Increase final damage taken by 10%. Stacks up to 6 times. Lasts for 3 turns. Japanese text not available in the source data for this entry — English shown instead. |