In the Echoes of the Deep: Otherworld Exploration event, Travelers can challenge the Boss up to 6 times daily. Each attempt requires a unique hero lineup. This guide presents several high-performing team compositions for the Rematch with the Abyssolossus to give you some ideas.

【Sample Lineup 1】

Team Composition: Rook, Whisk, Sacredeia, Journ, and Reytah.●Team Aura / Familiar
It's recommended to use Rook's Attack Aura combined with the Tressym Familiar to maximize the team's damage output.
●Skill Timing Reference●Notes
1. Try to keep the Skill Haste of Rook, Whisk, and Sacredeia at the same level. It's best for Rook to get some extra Skill Haste from Rune sub-stats. By late battle, this will allow each of Rook's ultimate skills to deal massive damage.
2. If you don't have Reytah, replace her with Vicuc or another Support hero with the Stand United Talent. When doing so, your other allied heroes should have their Resistance stacked to over 240.
 
●Hero Replacement Reference

【Build Reference】

●Key Attribute Requirements
Journ requires Skill Haste > 100. When wearing the Gem's Inspiration set, he needs Enlightenment > 400.
Reytah: Accuracy > 260; Sacredeia and Journ: Accuracy > 200. 
●Gear Reference
If you don't have Reytah, prioritize equipping other heroes with armor that has Resistance as its main stat to ease the pressure of stat stacking.●Talent Reference 

【Sample Lineup 2】

Team Composition: Feenja, Beldelle, Fredegonda, Zhorak, and Shinnah.●Team Aura / Familiar
It's recommended to use Beldelle's Attack Aura combined with the Stoneborn Familiar to maximize the team's damage output.●Skill Timing Reference●Notes
1. Keep the Skill Haste values for Beldelle, Zhorak, Shinnah, and Fredegonda consistent. This lineup uses an Ice Blast build that relies on battle skill damage. Since Skill Haste is the only way to adjust when battle skills are used, synchronizing their casts is crucial for maximizing the team's damage output.
2. If you do not have Feenja and are using heroes like Felosia to sustain your team, consider replacing Zhorak with a Support hero who can dispel Debuffs or grant Debuff Immunity. This will prevent your heroes from being defeated when inflicted with Shield Prohibition or Healing Prohibition.
 
●Hero Replacement Reference

【Build Reference】

●Key Attribute Requirements
Feenja: Resistance > 450, Enlightenment as close to 400 as possible, Skill Haste > 35.
Beldelle: Resistance > 150; other heroes: Resistance > 240.
Shinnah: Accuracy > 290.
 
●Gear Reference●Talent Reference

【Sample Lineup 3】

Team Composition: Acilia, Nastjenka, Guinavivre, Tharivol, and Sutha.●Team Aura / Familiar
It's recommended to use Nastjenka's Attack Aura combined with the Stoneborn Familiar to maximize the team's damage output.
●Skill Timing Reference●Notes
1. If you don't have Acilia, replace her with another Support hero with the Stand United Talent. You will then need to stack all your heroes' Resistance to over 240. If you're struggling to survive, you can also replace Sutha with a support hero.
2. The damage output of Dauntless heroes is heavily affected by Attack Speed. In addition to Attack, Crit Rate, and Crit Damage, prioritize stacking Attack Speed as high as possible through substats.
 
●Hero Replacement Reference

【Build Reference】

●Key Attribute Requirements
Tharivol: Accuracy > 290, Crit Rate ≥ 100%;
Acilia: Resistance > 450, Enlightenment > 400
 
●Gear Reference●Talent Reference 

【Sample Lineup 4】

Team Composition: Irmoush, Huberg, Gladys, Lorentheel, and Alton.●Team Aura / Familiar
It's recommended to use Gladys's Attack Aura combined with the Tressym Familiar to maximize the team's damage output.
●Skill Timing Reference 
●Notes
1. If you don't have Irmoush, replace him with another Support hero with the Stand United Talent. You will then need to stack all your heroes' Resistance to over 240. If you're struggling to survive, you can also replace Alton with a support hero.
2. Ensure Huberg has the highest Crit Damage on your team so he can consistently receive the Mark from Gladys.
 
●Hero Replacement Reference

【Build Reference】

●Key Attribute Requirements
Irmoush: Accuracy > 220;
Alton: Accuracy > 290, Skill Haste > 70. If wearing the Gem's Inspiration set, aim for 400 Enlightenment.
When equipping Lorentheel with Dawn Pipe Organ, prioritize stacking Attack. If his Attack cannot exceed 6000, switch to Golden Antlers instead.
 
●Gear Reference
If Gladys doesn't have her signature Artifact, she can use Whisper of the Consumer instead. Alternatively, she can equip Witch's Remains, allowing Alton to wear the Chest of Radiance.●Talent Reference

【Sample Lineup 5】

Team Composition: Synarell, Flora, Chorak, Caspar, and Felicity.●Team Aura / Familiar
It's recommended to use Flora's Attack Aura combined with the Stoneborn Familiar to maximize the team's damage output.
●Skill Timing Reference●Notes
1. When aiming for a high score, it is recommended to manually time Synarell's ultimate skill. Cast it on Flora just before the boss uses its fifth skill to ensure she is not afflicted with Ultimate Down.
2. Synarell can be replaced with Khrysos. If you use other support heroes, it's recommended to field two of them to ensure your team's survival.
 
●Hero Replacement Reference

【Build Reference】

●Key Attribute Requirements
Synarell: Resistance > 450; stack Attack as high as possible.
Chorak: When equipped with the Gem's Inspiration set, get his Enlightenment as close to 400 as possible.
Felicity: Accuracy > 290, Crit Rate ≥ 100%.
Chorak, Felicity, and Caspar: Resistance > 270.
●Gear Reference●Talent Reference

 

【Sample Lineup 6】

Team Composition: Oggok, Talwer, Paixton, Durem, and Karf.●Team Aura / Familiar
It is recommended to use Oggok's Resistance Aura and the Tressym Familiar to maximize the team's damage output.
●Skill Timing Reference●Notes
1. Burn lineups are flexible. When running Paixton, you can swap Durem for Aschetius. If you don't have Paixton, you can use Beags in his place.
 
●Hero Replacement Reference

【Build Reference】

●Key Attribute Requirements
Durem: Accuracy > 160; it's also recommended to stack some Resistance from Rune sub-stats;
Paixton: Enlightenment > 400, Accuracy > 160, Resistance > 200;
Karf: Accuracy > 290, Resistance > 200;
Oggok: Accuracy > 220, Resistance > 400, Skill Haste > 100;
Talwer: Accuracy > 290, Resistance > 250, Skill Haste > 70.
 
●Gear Reference●Talent Reference