This is a Castle Rush guide for Death Castle in Seven Knights Re:Birth. Covering Dellons' Death Castle Best Team, Best Heroes, Strategy, Tips, and How to Get the Highest Score.
Table of Contents
Death Castle Overview

Schedule | Every Thursday |
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Death Castle is one of Castle Rush's stages where you face the Seven Knights and earn points. It opens every Thursday, and rewards are distributed daily at 5 PM (PST) based on Guild Rank, which is determined by the total points earned by all members.
![]() | Guild members who don't participate will not receive rewards. |
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Enemy Info

Round 1 | ||
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Round 2 | ||
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Round 3 | ||
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In Death Castle, Dellons uses powerful Single-Target attacks that can inflict Silence and grant himself a Damage Nullification buff. Meanwhile, Death Castle Rook and Chancellor can also inflict Silence and possess Magic Damage Resistance, making this stage difficult to clear without the right team setup.
Castle Rush GuideDeath Castle Best Heroes
Silence Immunity
![]() | Jin is one of a few heroes with Silence Immunity. A Physical attacker with a rich variety of attacks like Stun, Fixed Damage, and Crit attacks. Recommended Set: Assassin/Gatekeeper |
![]() | Cleo is another option for Silence Immunity; however, keep in mind that she's a Magic attacker. While her Petrify skill can be useful, she contributes little to the overall score. Recommended Set: Paladin/Gatekeeper |
Taunt
![]() | Li use his Taunt skill to redirect Dellons' powerful single-target attacks, inflicts stun and counterattacks. However, if your heroes are well-enhanced, you can safely exclude Li from your lineup. Recommended Set: Paladin/Gatekeeper |
Healing & Debuff Removal
![]() | Lina provides a Damage Boost and Continuous Healing. With Effect Resist Boost, it decreases the chance of being inflicted with Stun. Lina doesn't require any Skill Enhancement. Recommended Set: Paladin/Gatekeeper |
![]() | Yui is also the top recommended support for most stages. She provides continuous healing, greatly boosting team survivability. Enhancing her healing skill for an extra turn is highly recommended. Recommended Set: Paladin/Gatekeeper |
Damage Dealer (DPS)
![]() | A multi-hit Physical attacker who deals bonus damage to low-HP enemies and increases Physical damage taken by the top three attackers when striking twice. Recommended Set: Assassin |
![]() | He applies Bleed and detonates it for burst damage. Even if Dellons applies Silence, Bleed continues to deal damage over time, ensuring consistent DPS output. Recommended Set: Assassin/Vanguard |
![]() | F2P players benefit more from Feng Yan, who delivers a high-scaling Physical attack and grants himself All Damage Immunity. Alternatively, you can use Rachel if she's well enhanced. Recommended Set: Assassin |
Sub-DPS & Utility
![]() | Biscuit provides excellent utility with her Defense Debuff, Buff Removal, and Weakness Hit Chance Boost, making her a strong addition to almost any team. Recommended Set: Vanguard/Gatekeeper |
![]() | A Physical attacker who inflicts debuffs and boosts Physical Vulnerability and Weakness, dealing strong damage while empowering the team. A good addition if you're not using Li. Recommended Set: Bounty Tracker |
All enemies in Dellons' Castle Rush have Magic Resistance, Single-Target Attack Resistance, and Quintuple-Target Attack Resistance. To counter this, Heroes with Physical damage and Triple-Target Attack skills are recommended.
Team Formation Examples
Premium Team 1
Front Row | Front Row | Front Row | Front Row | Back Row |
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![]() Silence Immunity | ![]() Healer Def Debuffer | ![]() Buff Removal Def Debuffer (Flex Slot) | ![]() Debuffer Sub DPS | ![]() ![]() Physical Attack Main DPS |
F2P Team
Front Row | Front Row | Front Row | Front Row | Back Row |
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![]() ![]() Silence Immunity | ![]() Taunt | ![]() Healer | ![]() Debuffer Sub DPS | ![]() Physical Attack Main DPS |
Death Castle Tips & Strategy
Form Teams Effective Against Dellons

The key to victory is bringing Physical attackers with 3-Enemy Target skills, along with Silence Immunity and 'Defense' heroes or Debuffer to counter Dellons, so adjust your lineup accordingly.
Death Castle | |
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Boss & Mechanics | Boss Dellons uses high-damage Single-Target Attacks and inflicts Silence. Defeating one of your allies grants him a Damage Nullification buff. |
Strategy | Bring a hero with Silence Immunity to block his high-damage attacks, and include defense-type heroes to minimize damage taken. |
Enemy Resistances | All enemies in Dellons' Castle Rush have Magic Resistance, Single-Target Attack Resistance, and Quintuple-Target Attack Resistance. |
Recommended Heroes | Use Physical-type heroes with Triple-Target Attack skills to maximize points and clear waves efficiently. |
Use Protective Formation

Protective Formation is the recommended setup for Death Castle. At Level 20, it boosts Back Row heroes' Attack by 26% and grants Front Row supports and healers a 6.5% Defense increase. Other formations can also work, but require more investment into your characters and gear.
![]() | Make sure to enhance the formation level for increased back row and front row effect. The higher the Formation level, the better. |
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Use Skill Queue

Auto Skills offer convenience, but they don't always select the optimal skills in critical situations. It's best to use the Skill Queue to start with a buff, then monitor combat and manually activate skills as needed.
![]() | Strategically, queue buffs first, such as 'Barrier', then use priority skills manually to gain the upper hand. |
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Enhance Your Hero

Enhance your heroes' skills, ultimate, and power-up to +5. Prioritizing tanks and healers to boost their effectiveness and utility. Skill & Ultimate Enhancement materials can be obtained from Story Event rewards, the Shop, and the Infinite Tower.
Related Articles | ||
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Power Up Heroes | Upgrade Equipment | Enhance Formation |
How to Get the Highest Score
Use Physical Heroes with 3-Target Skills

All enemies in Dellons' Death Castle have Magic Resistance, Single-Target Attack Resistance, and Quintuple-Target Attack Resistance buff. To increase damage output and achieve a high score, use Physical-type heroes with Triple-Target Attack skills.
Sustain is Optional
The core mechanic of Castle Rush is to maximize total damage within the turn limit, as scores are based on the cumulative damage dealt before the final turn. If your team can endure without heavy support, focus on offense and debuff instead to maximize score.
![]() | If your team struggles, bring a debuffer or crowd control to survive until the final turn. |
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Related Seven Knights Re: BIRTH Articles
Ranking Articles
Ranking Articles | ||
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