This is a Castle Rush guide for Fodina Castle in Seven Knights Re:Birth. Covering Tuesday's Eileene Castle, Best Team, Best Heroes, Strategy, and How to Get the Highest Score in 7K Rebirth
Table of Contents
Fodina Castle Overview

| Enemy |   Eileene  Rook  Chancellor |     
| Enemy Attack Type |   Physical |     
| Status Effects Inflicted |   Shock |     
| Effective Status Effects | None | 
| Other Features | - Rook grants All Attack Reduction - Deals Pierce Damage - Physical Attack/Single-Target Skill/5-Target Skill Damage Resistance - Activates Berserk after 30 turns (Damage dealt increases by 50% → increases to 100% → 200% → 500% over turns)  |     
Fodina Castle is one of Castle Rush's stages where you face the Seven Knights and earn points. It opens every Tuesday, and rewards are distributed daily at 12 AM (UST+0) based on Guild Rank, which is determined by the total points earned by all members.
 Tips! |             Guild members who don't participate will not receive rewards. | 
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Main Rewards
| Category | Rewards | 
|---|---|
| Personal Rewards |   Guild Token  Gold  Key  Castle Rush Challenge Medals | 
| Guild Rewards |   Hero Ticket per Guild Rank  Gold Box per Guild Rank  Castle Rush Challenge Medals | 
| Challenge Missions |   Key Bundle  Leah  Skill Enhancement Stone  Gold  Rare Hero Selector  Hero Summon Voucher | 
Castle Rush offers Personal Rewards, Guild Rewards, and Challenge Mission Rewards. For the Guild Reward's Hero Summon Card, higher Ranks increase the chance of obtaining Seven Knights, so work together with your Guild to achieve a high score.
 Tips! |             You can also exchange 4,000 Castle Rush Challenge Medals for a Seven Knights Summon Card at the Guild's Exchange Shop | 
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Enemy Info

| Round 1 | ||
|---|---|---|
 Rook |  Chancellor |  Rook | 
| Round 2 | ||
 Rook |  Chancellor |  Rook | 
| Round 3 | ||
 Rook |  Eileene |  Chancellor | 
Eileene in Fodina Castle uses attacks that inflict Shock and grant Berserk on herself. Meanwhile, Fodina Rook and Chancellor can also inflict Shock and possess Damage Resistance, making this stage difficult to clear without the right team setup.
Castle Rush GuideFodina Castle Best Heroes
Shock Immunity
| Only One | |||
|---|---|---|---|
Chloe is the only hero with Shock Immunity, making her a key hero for surviving in Fodina Castle until the final turn. Chloe also provides an All Attack Boost, Debuff Removal, and a chance to inflict Unable to Recover.
Magic Attacks on 3-4 Enemies
All enemies in Fodina Castle have Damage Resistance against Physical attacks, single-target skills, and 5-target skills, so focus on using magic attacks that hit 3–4 enemies. Ruri is the top recommendation, but if you don't have her, it's best to enhance the Sera instead.
Buff & Debuffs
When you enter the third round, use buffs and debuffs to increase your attacker's damage. It's recommended to apply buffs and debuffs with longer durations first.
Buff Duration Reduction
When Rook uses a skill, he grants Damage Immunity to the enemy. You won't be able to deal any damage at all, preventing you from increasing your score, so remove it immediately by shortening it with Buff Duration Reduction.
Team Formation Examples
Premium Team
| Front Row | Front Row | Front Row | Front Row | Back Row | 
|---|---|---|---|---|
 ChloeShock Immunity  |  LinaHealer Def Debuffer  YeonheeDef Debuffer Magic Attack  |  BiscuitBuff Removal Def Debuffer (Flex Slot)  |  MihoDebuffer Sub DPS  |  Ruri YeonheeMagic Attack Main DPS  | 
F2P Team
| Front Row | Front Row | Front Row | Front Row | Back Row | 
|---|---|---|---|---|
 ChloeShock Immunity  |  YuiHealer  |  Ace BiscuitDebuffer  |  Ariel MihoDebuffer Sub DPS  |  SeraMagic Attack Main DPS  | 
Optionally, you can place Miho or Ariel (Sub DPS) in the back row alongside the main DPS when using Balanced Formation, especially if they're well-enhanced.
Fodina Castle Tips & Strategy
Form Teams Effective Against Eileene

The key to victory is bringing heroes with Magic Attacks with 3-Enemy Target skills, Shock Immunity and Debuffer/Buff Duration Reduction to counter Eileene, so adjust your lineup accordingly.
| Fodina Castle | |
|---|---|
| Boss & Mechanics | Boss Eileene uses attacks that inflict Shock and grant All Damage Immunity to all allies whenever Rook uses a skill. | 
| Strategy | Bring a hero with Shock Immunity and a hero who can Buff Duration Reduction to remove the Damage Immunity buffs. | 
| Enemy Resistances | All enemies in Eileene's Castle Rush have Physical Resistance, Single-Target Attack Resistance, and Quintuple-Target Attack Resistance. | 
| Recommended Heroes | Use Magic-type with Triple-Target Attack Skills to maximize points and efficiently clear waves. | 
Use Protective Formation

Protective Formation is the recommended setup for Fodina 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.
 Tips! |             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.
 Tips! |             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 | ||
|---|---|---|
| Power Up Heroes | Upgrade Equipment | Enhance Formation | 
How to Get the Highest Score
Use Magic Heroes with 3-Target Skills

All enemies in Fodina Castle have Physical Resistance, Single-Target Attack Resistance, and Quintuple-Target Attack Resistance buffs. To increase damage output and achieve a high score, use Magic-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 buff duration reduction/debuff instead to maximize score.
 Tips! |             If your team struggles, bring a healer, buff remover, or crowd control to survive until the final turn. | 
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Related Seven Knights Re: BIRTH Articles
Ranking Articles
| Ranking Articles | ||
|---|---|---|
![]()  | ![]()  | ![]()  | 
 Eileene
 Rook
 Chancellor
 Physical
 Shock
 Guild Token
 Gold
 Key
 Castle Rush Challenge Medals
 Hero Ticket per Guild Rank
 Gold Box per Guild Rank
 Key Bundle
 Leah
 Skill Enhancement Stone
 Rare Hero Selector
 Hero Summon Voucher
Ruri
Miho
Sera
Ariel
Karma
Rin
Vanessa
Cleo
Biscuit
Lina
Vanessa
Yeonhee
Ace
Noho
Miho
Rin
Sera
Chloe
Lina
Yeonhee
Biscuit
Yui
Ace