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This covers the Calistra Raid in Seven Knights Re:BIRTH (7K Rebirth). It includes the boss's details, available rewards, the best team, and tips to defeat Calistra efficiently..
Contents
Calistra Sudden Raid Basic Information
Enemy Information
| Enemy |  Calistra |
| Attack Type |  Magic |
| Status Ailments |  Blind Burn |
| Other Features | - Magic Resistance - Attack increases every turn - Deals bonus damage to targets with Blind or Burn |
Clear Rewards
Sudden Raid Rewards
| Type | Details | Reward Items |
|---|---|---|
| Rank Rewards | Rewards based on damage dealt to the boss. Higher ranks increase the chance for equipment with 4 substats. | Equipment Essence of Memories |
| Ranking Rewards | Rewards based on the total damage ranking. | Essence of Memories Chaos Essence Oblivion Essence |
| Discovery Rewards | Personal reward for the player who triggered the Sudden Raid. | Essence of Memories |
| Participation Rewards | Participation reward given when the boss is defeated. | Essence of Memories |
Calistra Equipment Rewards
| Equipment | Set Type |
 6★ Brilliant Twilight Twin Swords |  Vanguard Bounty Tracker Paladin |
 6★ Brilliant Twilight Feather Fan | |
 6★ Brilliant Twilight Cloak |
Strategy Tips & Team Formation
- Burn and Blind Immunities are mandatory
└ Yui/Ryan and Zhao Yun are recommended. - Increase damage with buffs and debuffs
└ All Attack Reduction debuffs are also useful. - Use a Single-Target Physical Attacker
└ Shane is highly recommended. - Prioritize healing and Barriers when HP is low.
Burn and Blind Immunities are Mandatory
| Blind Immunity Heroes |
|---|
Since the enemy inflicts Burn and Blind, you must include Heroes with Burn and Blind Immunity. We recommend Yui, who also heals, or Ryan, who can reduce Cooldowns, for Burn Immunity. Currently, Zhao Yun is the only Hero with Blind Immunity.
 Tips! | When using Ryan, he is easily defeated, so the damage output of your attacker is crucial. |
|---|
Increase Damage with Buffs and Debuffs
First, boost your attacker's damage with buffs and debuffs. Calistra has high offensive power, so All Attack Reduction debuffs are recommended. However, it is also possible to clear by tanking through Xiao's Barrier or Lina's healing.
Use a Single-Target Physical Attacker
Since Calistra has Magic Resistance, use single-target physical attackers to deal damage. We recommend using Shane as her damage increases with the number of debuffs on the target, such as Attack Reduction.
| Tips! | Since damage output decreases as the skill's attack range broadens, single-target attacks are more recommended for 1-on-1 battles. |
|---|
Prioritize Healing and Barriers when HP is Low
| HP Healers | |||
|---|---|---|---|
Prioritize stabilizing your team with healing and Barriers if the team's HP starts getting low. If healing cannot keep up, consider adding more of these support Heroes.
Recommended Strategy Teams
Balanced Team (Yui)
| Front | Front | Front | Front | Back |
|---|---|---|---|---|
 BiscuitBuff/Debuff | Yui Burn Immunity Heal Buff | Zhao Yun Blind Immunity | Rachel Buff/Debuff | Shane Main DPS |
This is a balanced team example using Yui for Burn Immunity and Rachel, who synergizes well with Shane, in the Buff/Debuff slot. The benefit of this setup is that even if Shane is defeated, Yui can revive her.
Balanced Team (Ryan)
| Front | Front | Front | Front | Back |
|---|---|---|---|---|
| Biscuit Buff/Debuff | Ryan Burn Immunity CDR | Zhao Yun Blind Immunity | Xiao Buff/Debuff Barrier Heal | Shane Main DPS |
This balanced team uses Ryan for Burn Immunity and Xiao for Barrier generation and HP recovery. This setup is recommended if your Ryan is more developed than your Rachel.
Durability-Focused Team
| Front | Front | Front | Front | Back |
|---|---|---|---|---|
| Biscuit Buff/Debuff | Yui Burn Immunity Heal Buff | Zhao Yun Blind Immunity | Lina Heal Buff/Debuff | Shane Main DPS |
This team example uses two healers, Yui and Lina, for a durability-focused approach. Achieving an SS Rank score is difficult due to the high turn count, but it's recommended for those aiming for a stable S Rank clear.
DPS-Focused Team
| Front | Front | Front | Front | Back |
|---|---|---|---|---|
| Biscuit Buff/Debuff | Ryan Burn Immunity CDR | Zhao Yun Blind Immunity | Rachel Buff/Debuff | Shane Main DPS |
This is a DPS-focused team example using Ryan for Burn Immunity. While turn count is minimized, characters are easily defeated without a healer. You must either overwhelm with Shane's massive DPS or use revival rings on your front line.
| Tips! | This team is for advanced players aiming for top rankings! |
|---|
Hero Equipment Examples
| Hero | Equipment Example | Recommended Options |
| Biscuit | 1. Gatekeeper & Ring of Resurrection | HP Defense Block Rate Damage Taken Reduction |
| Ryan | 1. Avenger & Boss Damage Ring 2. Gatekeeper & Ring of Resurrection | 1. Crit Rate Crit Damage Weakness Hit Chance All Attack 2. HP Defense Block Rate Damage Taken Reduction |
| Yui | 1. Paladin & Resurrection or HP Ring | HP Defense Block Rate Damage Taken Reduction |
| Zhao Yun | 1. Avenger & Boss Damage Ring 2. Gatekeeper & Ring of Resurrection | 1. Crit Rate Crit Damage Weakness Hit Chance All Attack 2. HP Defense Block Rate Damage Taken Reduction |
| Rachel | 1. Avenger & Boss Damage Ring 2. Gatekeeper & Ring of Authority | 1. Crit Rate Crit Damage Weakness Hit Chance All Attack 2. HP Defense Block Rate Damage Taken Reduction |
| Xiao | 1. Avenger & Boss Damage Ring 2. Gatekeeper & Ring of Resurrection | 1. Crit Rate Crit Damage Weakness Hit Chance All Attack 2. HP Defense Block Rate Damage Taken Reduction |
| Shane | 1. Avenger & Boss Damage Ring | Crit Rate Crit Damage Weakness Hit Chance All Attack |
Offensive equipment is generally recommended to reduce the number of turns for clearing. However, since Biscuit is a magic attacker and deals less damage here, use the Gatekeeper set for specialized support. Yui should use the Paladin set to boost her healing amount.
Adjust other support Heroes based on their survivability and damage output.
What is Sudden Raid?
Random Chance to Occur after Clearing Raid Stages 11–15
Sudden Raid is a special raid that randomly occurs upon clearing stages 11–15 of regular raids. It is cooperative content where all players who have cleared stage 10 of each raid can participate to defeat the boss together.
Raid Battle Guide & Best Teams
Sudden Raid Guide List
Related Seven Knights Re: BIRTH Articles
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