Death Castle (Thursday) Dellons Guide

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.

Castle Rush Guide
Rudy	Eileene	Rachel	Dellons
Jave	Spike	Kris

Castle Rush Guide & Best Heroes to Use

Death Castle (Thursday) Dellons - Basic Information

Enemy Info

Enemy	Dellons Rook Chancellor
Enemy Attack Type	Physical
Status Ailments Inflicted	Silence
Effective Status Ailments	None
Other Features	- Nullifies all damage that would incapacitate it - Skill 2 is a single-target attack that hits 5 times for 300% of Dellons's Physical Attack each - Using Skill 2 to defeat an enemy triggers it again immediately - Damage Resistance to Magic Attacks, Single-Target Attack Skills, and Quintuple-Target Attack Skills - Enters Berserk Mode after turn 30 (Damage dealt increases: 50% → 100% → 200% → 500% as turns pass)

Main Rewards

Category	Reward Details
Individual Rewards	Guild Token Gold Key Castle Rush Challenge Medal
Guild Rewards	Hero Summon Cards for Each Castle Rush Rank Gold Boxes for Each Castle Rush Rank Castle Rush Challenge Medal
Castle Rush Challenge Missions	Key Box Ultimate Enhancement Material Leah Skill Enhancement Stone Gold Rare Hero Selection Card Hero Summon Ticket

Castle Rush offers Individual Rewards, Guild Rewards, and Castle Rush Challenge Mission rewards. The higher your guild's rank, the better your odds of pulling a Seven Knight from the Hero Summon Cards in the Guild Rewards, so aim for a high score together with your whole guild!

Tips!	You can also exchange 4,000 Castle Rush Challenge Medals for a Seven Knight Summon Card at the Guild Exchange Shop.

Tips for Clearing Death Castle (Thursday) Dellons

Silence Immunity is a Must

List of Heroes with Silence Immunity
Jin	Cleo	Yoo Jinho	Deo

The enemy inflicts Silence, so you should always include a hero with Silence Immunity in your team. Deo is recommended for his strong support kit, including Barrier generation, HP healing, and Crit Damage Boost.

Bring 3-4 Target Physical Attacks

Any 1 or More of the Following
Ryan	Sunran	Taka	Bi Dam
Rachel	Kyle	Feng Yan	Jin

All enemies in the Death Castle resist Magic Attacks, Single-Target Attack Skills, and Quintuple-Target Attack Skills, so attack with physical attacks that hit 3-4 targets. Ryan, Sunran, and Taka are recommended, but if you don't have them, it's better to train the Uncommon hero Feng Yan instead.

Tips!	Rachel's Skill 1 remains single-target until she reaches her 6th Transcendence.

Clear Rounds 1-2 Quickly First

Castle Rush has 3 rounds, and the boss Dellons appears in Round 3. You need to rack up as much score as possible within 70 turns, so clear Rounds 1-2 quickly with your DPS heroes' attacks.

Counter High-Damage Skills with Taunt or a DPS Debuff

Any 1 or More of the Following
Ryan *Skill 1 Enhanced	Rachel	Li

Once you reach Round 3, use Ryan's or Li's Taunt + Physical Attack Reduction skill, or Rachel's DPS Debuff skill, so you don't get knocked out by Dellons's high-damage single-target attack skill. If you're bringing Rachel, make sure to properly build up your team members so they can withstand the damage.

Tips!	If using Ryan, train him until Skill Enhancement gives him Physical Attack Reduction; if using Rachel, train her until her 6th Transcendence makes Skill 1 hit 3 targets.

Boost Damage with Buffs and Debuffs

Examples of Buff/Debuff Heroes
Biscuit	Lina	Rachel	Deo
Ace	May

Next, boost your DPS heroes' damage with buffs and debuffs. It's recommended to use the buffs/debuffs with the longest duration first.

Whittle Down HP with Your DPS

Once your buffs and debuffs are set up, use your backline DPS heroes to whittle down the enemy's HP. Even if you used their skills in Rounds 1-2, their skills will usually be ready to use again by the time you've finished setting up.

Progress Enhancement and Evolution

To increase your score, progressing hero growth through Enhancement, Evolution, and Ultimate Enhancement is important. Prioritizing Ultimate Enhancement and Skill Enhancement for your DPS heroes in particular is recommended, as it makes it much easier to boost your score.

Recommended Team Examples

Intermediate-to-Advanced Sunran Team

Team Composition: Balanced Formation

Biscuit

Sunran

Deo

Ryan

Rachel

Buff/Debuff

Main DPS

Buff/Debuff
Silence Immunity

Main DPS

Sub-DPS
Buff/Debuff

Dellons has a high HP pool of 50,000, making HP-based attacks easy to take advantage of, so if Sunran is at 6th Transcendence, this team tends to score higher. As long as you're careful about Speed order, the skill rotation is fairly easy to manage too.

Target Stats

Hero	Target Stats	Notes
	100%	Since she's a Magic hero, prioritizing bulk is recommended
	80%～	Increases status ailment infliction rate
	Needs Adjustment	Lower than Sunran and Ryan
	80%～	For score boosting
	200%～	The higher, the better
	50%～	70%+ with Rachel's buff
	Needs Adjustment	Lower than Sunran and Ryan
	80%～	For score boosting
	200%～	The higher, the better
	60%～80%	80-100% via Passive
	-	5th in team turn order
	5000～	1st-2nd in team turn order
	80%～	The higher, the less score variance
	200%～	The higher, the better
	0%	100% Weakness Hit Chance at 6th Transcendence
	-	3rd in team turn order
	4500～	1st-2nd in team turn order
	80%～	The higher, the less score variance
	200%～	The higher, the better
	20%～40%	81-100% with Biscuit/Rachel's buffs
	-	4th in team turn order

Setting the turn order to Sunran 3rd, Ryan 4th, and Rachel 5th lets you keep the skill rotation going without Biscuit's buff running out. If any of your heroes are getting knocked out, try raising their Defense or HP through Potential or Equipment.

Best Equipment & Rings

Hero	Equipment	Ring (Refine)
Biscuit
Deo
Rachel
Sunran
Ryan

Biscuit is a Spellweaver, so equipping a status ailment ring is recommended for her. Also, since Deo only uses damage buff skills, refining rings to cover missing stats is recommended over the Ring of Siege.

Best Pet

Ideal	Alternative	Alternative	Low Rarity
Windy	Eirin	Igris	Sherry

For pets, Windy is most recommended for her Boss Vulnerability effect. If you don't have her, substitute with Eirin or the collab Uncommon pet Igris.

Alternative Heroes

Main Pick	Alternative Heroes	Notes
	Jin	Alternative for Silence Immunity
	Feng Yan	Early-game 3-target physical attacker
	Taka	Alternative 3-target physical attacker
	Kyle	Alternative 4-target physical attacker
	Li	Early-game Taunt hero

If Sunran is below 6th Transcendence, swapping her for Taka may boost your score. If you don't have Deo, the Uncommon hero Jin also works.

Tips!	Deo is currently only obtainable through Hero Fusion.

Skill Usage Order

0T

0T

0T

4T

8T

12T

16T

20T

24T

28T

32T

36T

40T

44T

48T

52T

56T

60T

64T

68T

Sunran's Demon Face stacks +3 times with each wave, so you can clear WAVE 2 via the automatic skill trigger at 6 stacks. Sunran's Awakening skill targets all enemies and doesn't deal much damage, so avoid using it.

Intermediate-to-Advanced Taka Team

Team Composition: Balanced Formation

Biscuit

Taka

Deo

Ryan

Rachel

Buff/Debuff

Main DPS

Buff/Debuff
Silence Immunity

Main DPS
Taunt

Sub-DPS
Debuff

This is an example physical team built around two DPS heroes, Taka and Ryan. If Sunran is below 6th Transcendence, this build is recommended instead.

Target Stats

Hero	Target Stats	Notes
	100%	Since she's a Magic hero, prioritizing bulk is recommended
	80%～	Increases status ailment infliction rate
	Needs Adjustment	Lower than Taka and Ryan
	80%～	For score boosting
	200%～	The higher, the better
	50%～	70%+ with Rachel's buff
	Needs Adjustment	Lower than Taka and Ryan
	80%～	For score boosting
	200%～	For score boosting
	60%～80%	80-100% via Passive
	4500～	1st-2nd in team turn order
	80%～	The higher, the less score variance
	200%～	The higher, the better
	20%～40%	81-100% with Biscuit/Rachel's buffs
	-	4th in team turn order
	4500～	1st-2nd in team turn order
	80%～	The higher, the less score variance
	200%～	The higher, the better
	20%～40%	81% with Biscuit/Rachel's buffs
	-	5th in team turn order

It's recommended to lower your DPS heroes' Speed so they stay buffed longer, but putting Ryan 4th throws off the Cooldown Reduction timing, so put Taka 4th and Ryan 5th instead.

Best Equipment & Rings

Hero	Equipment	Ring (Refine)
Biscuit
Deo
Rachel
Taka
Ryan

Biscuit is a Spellweaver, so equipping a status ailment ring is recommended for her. Since Deo only uses damage buff skills, refine his rings to cover missing stats instead of using the Ring of Siege.

Best Pet

Ideal	Alternative	Alternative	Low Rarity
Windy	Eirin	Igris	Sherry

For pets, Windy is most recommended for her Boss Vulnerability effect. If you don't have her, substitute with Yeonji or the collab Uncommon pet Igris.

Alternative Heroes

Main Pick	Alternative Heroes	Notes
	Jin	Alternative for Silence Immunity
	Feng Yan	Early-game 3-target physical attacker
	Sunran	Alternative 4-target physical attacker
	Kyle	Alternative 4-target physical attacker

If Sunran is at 6th Transcendence or higher, swapping her in may boost your score. Deo is currently only obtainable through Hero Fusion, so use the Uncommon hero Jin if you haven't trained him yet.

Skill Usage Order

0T

0T

0T

4T

8T

12T

16T

20T

24T

28T

32T

36T

40T

44T

48T

52T

56T

60T

64T

68T

In WAVE 3, once you've applied Rachel's and Biscuit's buffs/debuffs, skip Deo's skill and use Ryan's and Taka's upper skills instead, which lets you keep using them into the late game.

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 Activity Where You Compete for Total Score

Castle Rush is a PvE (monster battle) mode you can play through your guild. The total of each member's individual score, based on damage dealt, is tallied by the guild every day, and you receive rewards for both your individual score and your guild's rank.

Castle Rush Guides

Castle Rush Guide
Rudy	Eileene	Rachel	Dellons
Jave	Spike	Kris

Castle Rush Guide & Best Heroes to Use

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