Boss Challenges and the Repertoire

Duet Night Abyss bosses

Each of the 7 Boss Challenges runs at six difficulties, from level 30 to 80, and the higher ones add Secret Letters for a character or weapon to the rewards. The Repertoire stages below are this rotation's: every half lists the enemies it sends and the cadences that change its rules.

Boss Challenges

Sibylle

The chief of the Hyperborean Empire's 13th Legion. Her arrival on Purgatorio Island irrevocably altered our destiny.

Difficulty 1 · level 30Coin ×10,000Ring of Severed Fear ×2
Difficulty 2 · level 40Secret Letter: Elpides Abound ×3Secret Letter: Elpides Abound (80%)Secret Letter: Elpides Abound (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 3 · level 50Secret Letter: Psyche ×3Secret Letter: Psyche (80%)Secret Letter: Psyche (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 4 · level 60Secret Letter: Sacrosanct Chorus ×3Secret Letter: Sacrosanct Chorus (80%)Secret Letter: Sacrosanct Chorus (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 5 · level 70Secret Letter: Stellar Finality ×3Secret Letter: Stellar Finality (80%)Secret Letter: Stellar Finality (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 6 · level 80Secret Letter: Blast Artistry ×3Secret Letter: Blast Artistry (80%)Secret Letter: Blast Artistry (20%)Ring of Severed Fear ×3Coin ×10,000

Crystalophile

The Grim Reaper of Glevum. A massive Filthoid in the depths of Glevum Pit, mechanically repeating the behaviour of tunnelling and devouring any glowing objects.

Difficulty 1 · level 30Coin ×10,000Ring of Escaped Entropy ×2
Difficulty 2 · level 40Secret Letter: Vernal Jade Halberd ×3Secret Letter: Vernal Jade Halberd (80%)Secret Letter: Vernal Jade Halberd (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 3 · level 50Secret Letter: Yale ×3Secret Letter: Yale (80%)Secret Letter: Yale (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 4 · level 60Secret Letter: Viridis Reefs ×3Secret Letter: Viridis Reefs (80%)Secret Letter: Viridis Reefs (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 5 · level 70Secret Letter: Guixu Ratchet ×3Secret Letter: Guixu Ratchet (80%)Secret Letter: Guixu Ratchet (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 6 · level 80Secret Letter: Truffle and Filbert ×3Secret Letter: Truffle and Filbert (80%)Secret Letter: Truffle and Filbert (20%)Ring of Escaped Entropy ×3Coin ×10,000

The Eclosioner

The seed in the frozen soil that has forfeited the opportunity for a gentle descent into the night.

Difficulty 1 · level 30Coin ×10,000Ring of Chronal Reversion ×2
Difficulty 2 · level 40Secret Letter: Wandering Rose ×3Secret Letter: Wandering Rose (80%)Secret Letter: Wandering Rose (20%)Ring of Chronal Reversion ×3Coin ×10,000
Difficulty 3 · level 50Secret Letter: Rhythm ×3Secret Letter: Rhythm (80%)Secret Letter: Rhythm (20%)Ring of Chronal Reversion ×3Coin ×10,000
Difficulty 4 · level 60Secret Letter: Sacrosanct Decree ×3Secret Letter: Sacrosanct Decree (80%)Secret Letter: Sacrosanct Decree (20%)Ring of Chronal Reversion ×3Coin ×10,000
Difficulty 5 · level 70Secret Letter: Exiled Thunderwyrm ×3Secret Letter: Exiled Thunderwyrm (80%)Secret Letter: Exiled Thunderwyrm (20%)Ring of Chronal Reversion ×3Coin ×10,000
Difficulty 6 · level 80Secret Letter: Submerged Serenade ×3Secret Letter: Submerged Serenade (80%)Secret Letter: Submerged Serenade (20%)Ring of Chronal Reversion ×3Coin ×10,000

The Warden of the Inferno

The Warden of the Imperial Military Prison wields her chains to chastise evil and her flames to defend justice.

Difficulty 1 · level 30Coin ×10,000Ring of Justice Rekindled ×2
Difficulty 2 · level 40Secret Letter: Punitive Inferno ×3Secret Letter: Punitive Inferno (80%)Secret Letter: Punitive Inferno (20%)Ring of Justice Rekindled ×3Coin ×10,000
Difficulty 3 · level 50Secret Letter: Hellfire ×3Secret Letter: Hellfire (80%)Secret Letter: Hellfire (20%)Ring of Justice Rekindled ×3Coin ×10,000
Difficulty 4 · level 60Secret Letter: Day of Sacred Verdict ×3Secret Letter: Day of Sacred Verdict (80%)Secret Letter: Day of Sacred Verdict (20%)Ring of Justice Rekindled ×3Coin ×10,000
Difficulty 5 · level 70Secret Letter: Embla Inflorescence ×3Secret Letter: Embla Inflorescence (80%)Secret Letter: Embla Inflorescence (20%)Ring of Justice Rekindled ×3Coin ×10,000
Difficulty 6 · level 80Secret Letter: Arclight Apocalypses ×3Secret Letter: Arclight Apocalypses (80%)Secret Letter: Arclight Apocalypses (20%)Ring of Justice Rekindled ×3Coin ×10,000

Beast From the Snowfield

It is the Beast From the Snowfield, crushing children's homes and melting remnants of the fairy's slumber.

Difficulty 1 · level 30Coin ×10,000Ring of Severed Fear ×2
Difficulty 2 · level 40Secret Letter: Sacred Favour ×3Secret Letter: Sacred Favour (80%)Secret Letter: Sacred Favour (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 3 · level 50Secret Letter: Lisbell ×3Secret Letter: Lisbell (80%)Secret Letter: Lisbell (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 4 · level 60Secret Letter: Aureate Yore ×3Secret Letter: Aureate Yore (80%)Secret Letter: Aureate Yore (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 5 · level 70Secret Letter: Daybreak Hymn ×3Secret Letter: Daybreak Hymn (80%)Secret Letter: Daybreak Hymn (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 6 · level 80Secret Letter: Phantasio ×3Secret Letter: Phantasio (80%)Secret Letter: Phantasio (20%)Ring of Severed Fear ×3Coin ×10,000

Taihao and Zhuyin

Adrift the heart, lost to memory. Vast the void, a way astray.

Difficulty 1 · level 30Coin ×10,000Ring of Severed Fear ×2
Difficulty 2 · level 40Secret Letter: Elpides Abound ×3Secret Letter: Elpides Abound (80%)Secret Letter: Elpides Abound (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 3 · level 50Secret Letter: Psyche ×3Secret Letter: Psyche (80%)Secret Letter: Psyche (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 4 · level 60Secret Letter: Sacrosanct Chorus ×3Secret Letter: Sacrosanct Chorus (80%)Secret Letter: Sacrosanct Chorus (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 5 · level 70Secret Letter: Stellar Finality ×3Secret Letter: Stellar Finality (80%)Secret Letter: Stellar Finality (20%)Ring of Severed Fear ×3Coin ×10,000
Difficulty 6 · level 80Secret Letter: Blast Artistry ×3Secret Letter: Blast Artistry (80%)Secret Letter: Blast Artistry (20%)Ring of Severed Fear ×3Coin ×10,000

Aurora Express Main Cannon

A Phoxichor-powered cannon mounted at the front of the train. It features a 210 mm smoothbore barrel with excellent armour penetration. Working in tandem with the train's other onboard weapons, it can destroy any enemy in its sights.

Difficulty 1 · level 30Coin ×10,000Ring of Escaped Entropy ×2
Difficulty 2 · level 40Secret Letter: Vernal Jade Halberd ×3Secret Letter: Vernal Jade Halberd (80%)Secret Letter: Vernal Jade Halberd (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 3 · level 50Secret Letter: Yale ×3Secret Letter: Yale (80%)Secret Letter: Yale (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 4 · level 60Secret Letter: Viridis Reefs ×3Secret Letter: Viridis Reefs (80%)Secret Letter: Viridis Reefs (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 5 · level 70Secret Letter: Guixu Ratchet ×3Secret Letter: Guixu Ratchet (80%)Secret Letter: Guixu Ratchet (20%)Ring of Escaped Entropy ×3Coin ×10,000
Difficulty 6 · level 80Secret Letter: Truffle and Filbert ×3Secret Letter: Truffle and Filbert (80%)Secret Letter: Truffle and Filbert (20%)Ring of Escaped Entropy ×3Coin ×10,000

Featured Repertoire

Until 19 Oct

Stage 1 · recommended level 60

First half

Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Defence Cadence: Tempered Mind. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Skill DMG lowers it by an additional 4.0%.

Second half

Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.

Stage 2 · recommended level 70

First half

Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Defence Cadence: Tempered Mind. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Skill DMG lowers it by an additional 4.0%.

Second half

Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.

Stage 3 · recommended level 80

First half

Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Defence Cadence: Tempered Mind. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Skill DMG lowers it by an additional 4.0%.

Second half

Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.

Immortal Repertoire

Until 19 Oct

Stage 1 · recommended level 80

First half

Verdict Cadence: Elemental Pact. Enemy units are assigned the selected element. They take 400% more damage from advantaged elements, and 50% less damage from disadvantaged elements.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.
Fanfare Cadence: Banner's Covenant. While a Primander is present, nearby enemies take 25.0% less damage.

Second half

Stage 2 · recommended level 80

First half

Verdict Cadence: Elemental Pact. Enemy units are assigned the selected element. They take 400% more damage from advantaged elements, and 50% less damage from disadvantaged elements.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.
Fanfare Cadence: Banner's Covenant. While a Primander is present, nearby enemies take 25.0% less damage.

Second half

Stage 3 · recommended level 80

First half

Verdict Cadence: Elemental Pact. Enemy units are assigned the selected element. They take 400% more damage from advantaged elements, and 50% less damage from disadvantaged elements.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.
Fanfare Cadence: Banner's Covenant. While a Primander is present, nearby enemies take 25.0% less damage.

Second half

Stage 4 · recommended level 80

First half

Verdict Cadence: Elemental Pact. Enemy units are assigned the selected element. They take 400% more damage from advantaged elements, and 50% less damage from disadvantaged elements.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.
Fanfare Cadence: Banner's Covenant. While a Primander is present, nearby enemies take 25.0% less damage.

Second half

Stage 5 · recommended level 80

First half

Verdict Cadence: Elemental Pact. Enemy units are assigned the selected element. They take 400% more damage from advantaged elements, and 50% less damage from disadvantaged elements.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.
Fanfare Cadence: Banner's Covenant. While a Primander is present, nearby enemies take 25.0% less damage.

Second half

Stage 6 · recommended level 80

First half

Verdict Cadence: Elemental Pact. Enemy units are assigned the selected element. They take 400% more damage from advantaged elements, and 50% less damage from disadvantaged elements.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.
Allegro Agitato: Coin of the Gods. When an ally uses a Combat Skill or Ultimate Skill, grants 1 stack of +30.0% Trigger Probability for 18.0s, up to 6.0 stacks.
Andante Furioso: The Courage to Defy. For every 20.0 instances of Weapon DMG dealt by any ally, grants 1 stack of +5.0% Damage Dealt for 10.0s, up to 10.0 stacks.
Bulwark Cadence: Braveheart. Enemy units take 80.0% less damage, but each time they take damage, this reduction is lowered by 1.0%. Weapon DMG lowers it by an additional 1.0%.
Fanfare Cadence: Banner's Covenant. While a Primander is present, nearby enemies take 25.0% less damage.

Second half

Classic Repertoire

Permanent

Stage 1 · recommended level 20

First half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.

Second half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.

Stage 2 · recommended level 25

First half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.

Second half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.

Stage 3 · recommended level 30

First half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.

Second half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.

Stage 4 · recommended level 35

First half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.

Second half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.

Stage 5 · recommended level 40

First half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.

Second half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.

Stage 6 · recommended level 45

First half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.

Second half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.

Stage 7 · recommended level 50

First half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.

Second half

Andante Furioso: Onslaught's Boon. Every 5.0 instances of damage dealt by any ally grant 1 stack of +12.0% ATK, lasting 10.0 s and stacking up to 10.0 times.
Bulwark Cadence: Trembling Paladin. Enemy units take 80.0% less damage, but each time they take damage, the damage reduction decreases by 1.0%.
Invincible Cadence: Bastion of Loyalty. When an Extreme-Threat enemy's HP falls below 50.0%, it becomes invincible for 30.0s and summons reinforcements. Each defeated enemy grants all allied units 1 stack of 1.0% Damage Dealt Increase, stacking up to 50.0 times. Invincibility ends early once a set number of enemies are defeated.