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This is a Castle Rush guide for Death Castle in Seven Knights Re:Birth. Covering Thursday's Dellons Castle, Best Team, Best Heroes, Strategy, Tips, and How to Get the High Score.
Table of Contents
Castle Rush Guide & Best Heroes to Use
Death Castle (Thursday) Dellons Basic Information
Enemy Information
| Enemy |  Dellons Rook Chancellor |
| Enemy Attack Type |  Physical |
| Status Ailment Inflicted |  Silence |
| Effective Status Ailments | None |
| Other Characteristics | - Gains Damage Nullification for all damage when a party member is incapacitated - Skill 2 deals single-target damage equal to 300% of Dellons's Physical Attack, 5 times - Skill 2 triggers again in succession if it defeats a target - Damage Resistance against Magic Attack / single-target skills / 5-target skills - Enrage activates after turn 30 (Damage dealt increases by 50%, then rises to 100% → 200% → 500% as turns progress) |
Main Rewards
| Category | Reward Contents |
| Individual Rewards |  Guild Token Gold Key Castle Rush Challenge Medal |
| Guild Rewards |  Hero Summon Card for Each Castle Rush Rank Gold Box for Each Castle Rush Rank Castle Rush Challenge Medal |
| Castle Rush Challenge Missions |  Key Box Ultimate Enhancement Material Leah Skill Enhancement Stones Gold Rare Hero Selection Card Hero Summon Ticket |
Castle Rush offers Individual Rewards, Guild Rewards, and Castle Rush Challenge Mission Rewards. The higher your rank, the better your chances of getting a Seven Knight from the Guild Reward's Hero Summon Card, so work with your Guild Members to aim for a high score!
 Tips! | You can also exchange 4,000 Castle Rush Challenge Medals for a Seven Knights Summon Card at the Guild Exchange Shop. |
|---|
Tips for Clearing Death Castle (Thursday) Dellons
Silence Immunity is a Must
The enemy inflicts Silence, so you should always include a hero with Silence Immunity. Deo is a great pick thanks to his high support performance, including Barrier generation, HP recovery, and Crit Damage Boost.
Use Physical Attacks That Hit 3-4 Targets
All enemies in Death Castle apply Damage Resistance against Magic Attacks, single-target skills, and 5-target skills, so attack with physical attacks that hit 3-4 targets. Ryan, Sunran, and Taka are great picks, but if you don't have them, it's better to train the Rare hero Feng Yan instead.
| Tips! | Keep in mind that Rachel's Skill 1 is a single-target attack until she reaches Transcendence 6. |
|---|
First, Clear Rounds 1-2 Quickly
Castle Rush consists of 3 rounds, with the boss Dellons appearing in Round 3. You need to maximize your score within 70 turns, so clear Rounds 1-2 quickly using your Attackers.
Counter High-Damage Skills With Taunt or Damage Debuffs
Once you reach Round 3, use Ryan's or Li's Taunt + Physical Attack Reduction skill, or Rachel's damage debuff skill, so you don't get knocked out by Dellons's high-damage single-target attack skill. If you use Rachel, be sure to properly train your party members so they can withstand the incoming damage.
| Tips! | For Ryan, train him until Skill Enhancement grants him Physical Attack Reduction; for Rachel, train her until Transcendence 6 makes her Skill 1 hit 3 targets. |
|---|
Boost Damage With Buffs and Debuffs
Next, use Buffs and Debuffs to increase your Attackers' damage. It's best to apply Buffs/Debuffs with the longest duration first.
Whittle Down HP With Attackers
Once Buffs and Debuffs are set up, use your Back Row Attackers to whittle down the enemy's HP. Even if you used their skills in Rounds 1-2, they'll usually be available again by the time you've finished setting up.
Progress Enhancement, Evolution, and Other Training
Training such as Power Up, Rank Up, and Ultimate Enhancement is important for increasing your score. Prioritizing your Attackers' Ultimate Enhancement and Skill Enhancement in particular is a great way to significantly boost your score.
Efficient Hero Training Methods
Best Team Comps
Eileene Team for Intermediate to Advanced Players
Team Lineup Formation: Defense
Silence Immunity
Buff/Debuff
Depending on each hero's training level, this team may score higher than the Sunran team. Try out several of the listed comps and challenge with whichever one scores the highest.
Target Stats
| Hero | Target Stats | Notes |
|---|---|---|
|  100% | As a Magic-type hero, a durability-focused build is Best |
 80%+ | Increases the status ailment ring's infliction rate | |
|  Needs Adjustment | Keep 3rd-lowest or below within the team |
 80%+ | To boost score | |
 200%～ | The higher, the better | |
 50%～ | 70%+ with Rachel's buff | |
| Needs adjustment | 3rd or lower in the party |
| 80%～ | For score increase | |
| 200%～ | The higher, the better | |
| 50%～ | 70%+ with Rachel's buff | |
| 4400～ | 1st-2nd in the party |
| 80％～ | The higher, the less score variance | |
| 200%～ | The higher, the better | |
| 20%～40% | 81-100% with Biscuit/Rachel's buff | |
 - | 3rd-4th in the party | |
| 4500～ | 1st-2nd in the party |
| 80％～ | The higher, the less score variance | |
| 200%～ | The higher, the better | |
| 20%～40% | 81-100% with Biscuit/Rachel's buff | |
| 30+ | 3rd-4th in the party |
Adjust the party's overall Attack so that Biscuit's buff reaches both Ryan and Rachel. Ryan's Speed should be higher than Dellons' and rank 3rd-4th in the party. If any hero gets defeated along the way, raise Defense or HP through Potential.
Best Equipment & Rings
Best Pets
| Ideal | Alt | Alt | Low Rarity |
|---|---|---|---|
 Windy |  Eirin |  Igris |  Sherry |
For pets, Windy, who can inflict Boss Vulnerability, is the best choice. If you don't have her, use Eirin or the collab Rare pet Igris as a substitute.
Alternate Heroes
| Main | Alternate Hero | Notes |
|---|---|---|
|  Jin | Option for Silence Immunity |
|  Feng Yan | More attackers (early game) |
 Taka | More attackers (early game) | |
 Kyle | More attackers (early game) | |
 Sunran | Alternate for Buff/Debuff | |
|  Li | Early-game Taunt hero |
Depending on your investment, swapping Eileene for Sunran or Taka may increase your score in some cases. If you don't have Deo, the Rare Hero Jin also works fine.
| Tips! | Deo can currently only be obtained through Crafting. |
|---|
Skill Rotation
In the early turns, prioritize stacking Eileene's Defense Reduction. Once it's fully stacked, layer in Biscuit's and Deo's buffs while attacking with Rachel and Ryan.
Sunran Team for Intermediate to Advanced Players
Team Composition / Formation: Balanced
Silence Immunity
Buff/Debuff
Since Dellons has a high HP of 50,000, it's easy to take advantage of HP-scaling attacks, so if Sunran is T6, this team can achieve a higher score in some cases. As long as you pay attention to Speed order, the skill rotation is relatively easy to manage.
Target Stats
| Hero | Target Stats | Notes |
|---|---|---|
| 100% | Since she's a Magic hero, a defense-focused build is best |
| 80%～ | Increases Status Ailment Ring application rate | |
|  Needs adjustment | Lower than Sunran and Ryan |
| 80%～ | For score increase | |
| 200%～ | The higher, the better | |
| 50%～ | 70%+ with Rachel's buff | |
| Needs adjustment | Lower than Sunran and Ryan |
| 80%～ | For score increase | |
| 200%～ | The higher, the better | |
| 60%～80% | 80-100% with Passive | |
| - | 5th in the party | |
| 5000～ | 1st-2nd in the party |
| 80％～ | The higher, the less score variance | |
| 200%～ | The higher, the better | |
| 0% | 100% Weakness Hit Chance at T6 | |
| - | 3rd in the party | |
| 4500～ | 1st-2nd in the party |
| 80％～ | The higher, the less score variance | |
| 200%～ | The higher, the better | |
| 20%～40% | 81-100% with Biscuit/Rachel's buff | |
| - | 4th in the party |
Setting the turn order to Sunran 3rd, Ryan 4th, Rachel 5th lets you keep the rotation going without Biscuit's buff running out. If any hero gets defeated, try raising Defense or HP through Potential or equipment.
Best Equipment & Rings
Best Pets
| Ideal | Alt | Alt | Low Rarity |
|---|---|---|---|
| Windy | Eirin | Igris | Sherry |
For pets, Windy, who can inflict Boss Vulnerability, is the best choice. If you don't have her, use Eirin or the collab Rare pet Igris as a substitute.
Alternate Heroes
| Main | Alternate Hero | Notes |
|---|---|---|
| Jin | Option for Silence Immunity |
| Feng Yan | Early-game Physical attacker hitting 3 targets |
| Taka | Alternate Physical attacker hitting 3 targets | |
| Kyle | Alternate Physical attacker hitting 4 targets | |
| Eileene | Alternate for Buff/Debuff | |
| Li | Early-game Taunt hero |
If Sunran is below 6th Transcendence, swapping her out for Eileene or Taka may increase your score. If you don't have Deo, the Rare Hero Jin works fine too.
| Tips! | Deo can currently only be obtained through Crafting. |
|---|
Skill Rotation
Sunran's Demon Face stacks +3 times as the WAVE progresses, so you can clear WAVE 2 via the automatic skill activation at 6 stacks. Sunran's Awakening Skill targets all enemies and doesn't deal much damage, so avoid using it.
Taka Team for Intermediate to Advanced Players
Team Comp - Formation: Balanced
Silence Immunity
Taunt
Debuff
This is an example physical team that attacks with two attackers, Taka and Ryan. Sunran is below 6th Transcendence, this is the Best comp to use.
Target Stats
| Hero | Target Stats | Notes |
|---|---|---|
| 100% | Magic-type Hero, so bulkier stats are Best |
| 80%~ | Increases the Status Ailment ring's Effect Hit Rate | |
| Needs adjustment | Keep it lower than Taka and Ryan's |
| 80%~ | For increasing your score | |
| 200%~ | The higher, the better | |
| 50%~ | 70%+ with Rachel's buff | |
| Needs adjustment | Keep it lower than Taka and Ryan's |
| 80%~ | For increasing your score | |
| 200%~ | For increasing your score | |
| 60%~80% | 80-100% with her passive | |
| 4500~ | 1st-2nd highest in the team |
| 80%~ | The higher, the less your score varies | |
| 200%~ | The higher, the better | |
| 20%~40% | 81-100% with Biscuit/Rachel's buffs | |
| - | 4th highest in the team | |
| 4500~ | 1st-2nd highest in the team |
| 80%~ | The higher, the less your score varies | |
| 200%~ | The higher, the better | |
| 20%~40% | 81-100% with Biscuit/Rachel's buffs | |
| - | 5th highest in the team |
It's Best to lower your attackers' Speed so they can benefit from buffs longer, but if Ryan ranks 4th, it throws off the Cooldown Reduction timing, so set Taka as 4th and Ryan as 5th.
Best Equipment & Rings
Best Pets
| Ideal | Alternate | Alternate | Low Rarity |
|---|---|---|---|
| Windy | Eirin | Igris | Sherry |
Windy, who can inflict Boss Vulnerability, is the Best pet to use. If you don't have it, use Yeonji or the collab Rare Pet Igris as a substitute.
Alternate Heroes
| Main Pick | Alternate Hero | Notes |
|---|---|---|
| Jin | Substitute for Silence Immunity |
| Feng Yan | Early-game 3-target physical attacker |
| Sunran | Alternate 4-target physical attacker | |
| Kyle | Alternate 4-target physical attacker | |
| Eileene | Adds another Buff/Debuff Hero |
If Sunran is at 6th Transcendence or higher, swapping her in may increase your score. Deo can currently only be obtained via Crafting, so if you haven't raised one yet, use the Rare Hero Jin instead.
Skill Rotation
In WAVE 3, once you've applied Rachel and Biscuit's buffs/debuffs, skip Deo's skill and use Ryan and Taka's upper skills instead, which lets you use them again later in the fight.
Only use Taka's lower skill when none of your other priority skills are available.
Early-Game Team
| Front | Front | Front | Front | Back |
|---|---|---|---|---|
| Jin Sub-DPS Silence Immunity | Li Taunt | Yui Healer | Rachel Sub-DPS Debuff | Feng Yan Main DPS |
What is Castle Rush?
A Guild Content Where You Compete on Total Score
Castle Rush is a PvE (monster battle) mode you can play from your guild. The total of your individual scores, determined by the damage you deal, is tallied by your guild every day, and you receive rewards based on both your individual score and your Guild Rank.
Castle Rush Guide List
Castle Rush Guide & Best Heroes to Use
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 Tanjiro Kamado |  Zenitsu Agatsuma |  Giyu Tomioka |
 Shinobu Kocho |  Demon Slayer Colllab Guide |  Beginner & Returning Player Guide |
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