Seven Knights Re:BIRTH Callistra Sudden Raid Faye and Eileene Guide

To clear Callistra quickly in the Seven Knights Re:BIRTH Sudden Raid, pair Faye with Eileene in a physically oriented offensive lineup. Eileene provides teamwide physical attack amplification, while Faye cycles active skills to eliminate downtime between major cooldowns. A successful fast clear requires manually controlling the opening sequence and tuning your party's speed so your buffers act before your primary single-target damage dealer.

Team Composition and Core Roles

This raid strategy relies on stacking physical modifiers and defense debuffs onto Callistra before your main carry expends their highest-multiplier skills. Prolonged fights favor Callistra due to scaling area-of-effect damage, making high burst damage necessary to shorten the encounter.

Skill Rotation and Timing

Leaving the battle on unmanaged full-auto operation often causes high-cooldown nukes to fire before attack buffs or defense shreds are applied. Manually queue your abilities at the start of the raid.

Opening Sequence

1. Cast defense reductions: Land your breaker's defense-down debuff on Callistra first.
2. Deploy Eileene's buffs: Trigger Eileene's physical attack amplifier to boost all outgoing physical damage.
3. Engage Faye's skills: Use Faye to maintain turn order, refresh rotation flow, and prevent dead turns.
4. Unload primary carry nukes: Fire your main attacker's strongest single-target burst skills while both defense shred and physical attack buffs remain active.

Mid-Fight Management

• Reapply defense shred and Eileene’s physical buff whenever they expire before activating your main carry's heaviest skills.
• Use Faye’s cycling skills immediately when abilities enter cooldown so your primary attacker does not waste active turns on basic attacks.
• Hold defensive utility skills, such as party shields or cleanses, until boss attack indicators signal an incoming area-of-effect strike.

Gearing and Stat Priorities

Speed synchronization is the primary gearing check for this team. If your damage dealer moves before your buffers, the opening burst will fail to hit target damage thresholds.

• Eileene: Build for high Speed substats on armor and accessories to ensure her buffs land before your carry attacks. Add attack power alongside defensive substats like HP and Block to help her survive Callistra's stray strikes.
• Faye: Prioritize Speed and Cooldown Reduction so she acts frequently and keeps the team's ability cycle moving. Include sufficient defensive substats to prevent early knockouts.
• Main Carry: Focus entirely on Physical Attack, Critical Rate, and Critical Damage to capitalize on the stat multipliers provided by Eileene and defense debuffs.

Troubleshooting Run Failures

• Carry attacks before buffs are active: Check individual hero speed stats. Reduce speed on your carry or increase speed on Eileene and your breaker so the buff order executes correctly on auto-queue.
• Faye or Eileene dies early: Sudden Raid boss strikes can wipe undergeared supports. If buffers fall before the first rotation finishes, replace offensive accessory substats with bonus HP or damage reduction until they consistently survive the boss's opening phase.