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Boss Guide: Ch10-2 (Tunguska Sanctuary)

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Enemy Layout

Fatal Battle 1/1
166,382
"Beast of Taming"
193,218
"Beast of Taming"
214,686
"Beast of Taming"
236,155
"Beast of Taming"

Requirements: Available for a limited time during the Tunguska Sanctuary chapter event.

Boss Statistics

NPC Support: Ibuki-Douji
Lv90 NP5 10/10/10; CE Lv20 Empty Garden
Passive Serious Mode: Apply Debuff Immune, 10 Critical Stars per turn, Invincibility against enemies' NP (3 times) and Increase Critical Star Gather Rate by 6000% for NPC Ibuki-Douji. [Permanent, Unremovable]
NPC Support: Jiang Ziya
Lv90 NP3 8/8/8; CE Lv20 Empty Garden
Passive Todun: Increase NPC Jiang Ziya's NP Gain by 50%. While he is on the field, increase all allies' ATK by 30%. [Permanent, Unremovable]
NPC Support: Dobrynya Nikitich
Lv80 NP3 8/8/8; CE Lv20 Empty Garden
Passive Great Warrior: Increase NPC Dobrynya Nikitich's NP Strength by 50%. Increase her NP Strength by 50% after she defeats an enemy. While on the field, increase all allied Servants' DEF by 30%. [Permanent, Unremovable]
Field Effects: (Always occur)
Battle Start 1 Cage of Cherishment: Inflict Damage Taken Up by 1,500 for all [Hominidae] trait Servants. Apply Damage Cut by 500 to all [Demonic Beast] trait Servants. All effects include the backline [Permanent, Unremovable].
Battle Start 2 Jade Emperor Embodiment: Investiture of the Gods: Increase all allies' Damage against Beast IV by 20%. [Permanent, Unremovable]
Field Effect: On the turn Mash Kyrielight uses the Black Barrel Skill (once only):
Black Barrel Turn Habetrot - "Time to strike! Be prepared": Habetrot will appear and activate her Noble Phantasm (NP5), dealing damage and removing buffs from all enemies. Inflict Damage Resist Down by 50% (5 turns) and decrease ATK by 50% (5 turns) on all enemies [Unremovable].
Field Effect: At start of every 2 turns - Activate one of three helpful effects rotating in order:
Effect 1 Liquor of the Gods: Inflict Skill Seal (1 turn) on all enemies. Decrease their NP Bar by 1. Increase all allies' ATK by 20% (3 turns).
Effect 2 Deluge: Remove the last 3 buffs from all enemies. Apply [Near Water] battlefield effect (3 turn). Remove all debuffs from all allied Servants. Recover 500 HP the allied Servant with the lowest HP.
Effect 3 Great Serpent God: 80% chance to inflict Stun (1 turn), Curse (4,000 Damage per turn, 8 turns), Evil Curse (100% Curse Damage Up, 8 turns) and Nullify Buff (3 times, 8 turns) on all enemies.
"Beast of Taming"
Beast HP
166,382
LVL
90
HP
193,218
LVL
90
HP
214,686
LVL
90
HP
236,155
LVL
90
Class Beast
NP Bar
NP Type
AoE
Actions
Up to 3 per turn
Traits
Demonic, Wild Beast, Super Giant
Note Normal attacks are AoE; critical hits are ST.
Caster Class resists damage vs this boss.
Passive 1 Nega-Weapon: Grant self Offensive Class Advantage against [Hominidae] Trait Servants and Defense Class Disadvantage against [Demonic Beast] Servants. [Permanent, Unremovable].
Passive 2 Blurry, Darkness: Increase own NP Damage Resist by 80% (3 turns, Unremovable) and Critical Damage Resist by 60% (3 turns, Unremovable).
Battle Start 1 Permafrost Koyanskaya: Increase own NP Bar by 1 each turn (3 turns). Increase own Critical Rate by 30% (3 turns). Apply Invincible to self (1 turn). Decrease ATK by 30% for all enemies. (3 turns).
Break Icy Fire Century Koyanskaya: Increase own Critical Strength by 50% (3 turns). Increase NP Bar to MAX. Decrease all enemies' DEF by 30% (3 turns) and Critical Star Drop Rate by 30% (3 turns).
Break Perma-Nation Tayunskapon: Decrease own NP Bar by 1. Decrease own DEF by 30% (3 turns). Inflict Stun status (1 turn) to self. Increase all enemies' ATK by 30% (3 turns) and NP Gauge by 20%. Remove 1 debuff on all enemies and restore their HP by 2,000.
Break Saṃsāra Koyanskaya: Increase own ATK by 30% (3 turns). Apply 50% Special ATK vs [Debuffed] to self (3 turns). Increase own NP Bar by 1. Apply Guts to self (1 time, Revive with 120,000 HP). Recover own HP by 5,000 every turn (5 turns).
Skill 1 Curse, Swell: Inflict Curse on all enemies (10 turns, 400 dmg/turn).
Skill 2 Haze, Dazzle: Apply 80% Chance to Evade to self (5 times, 2 turns). Increase own Critical Rate by 50% (1 turn).
Skill 3 Fear, Revere: Inflict Terror on all enemies (1 time, 3 turns: 50% Chance to Stun each turn) and a Death Trigger Debuff on all enemies (3 turns, Unremovable): Restore own HP by 50,000 and increase ATK by 50% (3 turns).
* Usually will be used during the first turn.
NP Ominous Star: Deal damage to all enemies that Ignores DEF. Inflict Curse Damage Up by 100% (3 turns).

Overview

  • This battle is very similar to the "Beast of Taming" battle during the Olympus chapter, with the boss having the same skills and break effects as before. However, the NPC Supports available and additional helpful field effects are new.
  • Ibuki-Douji in particular comes with helpful permanent debuff immunity, invincibility against NPs for 3 hits, high star weight, and 10 stars per turn.
    • Due to how powerful her NPC Support version is for this battle, it is entirely possible to defeat the boss with NPC Ibuki as the primary damage dealer with minimal support (see video links).
  • Additional helpful effects will occur every 2 turns, rotating in order:
    • Skill Seals and drains boss's NP by 1, and provides small ATK buff to allies.
    • Removes 3 buffs from enemy and clear 3 debuffs from all allies, adds Near Water field, restores 500 HP to lowest-HP ally.
    • Stun (80%), Curse (4k dmg, 8 turns), amplify Curse damage (100%, 8 turns), and Buff Block (3 times, 8 turns) the boss.
  • The Boss is Beast IV class, and has advantage against [Hominidae] Trait Servants (2.0x damage) and Defense Class Disadvantage against [Demonic Beast] Servants (2.0x damage). Otherwise, they also deal 0.5x damage to Caster Class.
  • The Boss has a large 80% NP Damage / 60% Crit Damage Resistance for the first three turns, so it can be difficult to deal damage to the boss in the initial turns.
  • At battle start, the boss gains Crit Rate, Invincible, 1 extra NP Charge per turn, and debuffs ATK for the frontline. Note these are removable buffs.
  • Curse and Curse Damage Up effects can be inflicted by the boss's Skills and NP, and can stack.
  • The Boss can inflict Terror (chance of Stun each turn), along with an On-death debuff that will heal the boss by 50k / give it an ATK buff when the debuffed Servant dies.
  • The Boss also has a 5-time, 2 turn Evade skill with 80% chance success, which can be randomly used as a skill during its turn.
  • 1st Break: Charges NP to max, buffs its own Crit Damage, and debuffs the party's DEF and Star Drop Rate.
  • 2nd Break: The boss Stuns itself for a turn, loses 1 NP bar, gets a DEF debuff, while the party gains an ATK buff, 20% NP Gauge, 1 debuff cleared, and 20k HP recovered.
  • 3rd Break: Gains 1-time 120k HP Guts, charges NP bar by 1, an ATK buff, bonus damage against Debuffed enemies, and 5k HP recovery per turn.

Team Recommendations

  • Damage Dealers with [Demonic Beast] trait have Class Advantage for this encounter; they are a solid choice if available in the roster. On the other hand, avoid bringing Human attribute Servants unless the party is prepared for them to perish quickly.
    • Caster Class has defensive Class Advantage as well. The one Servant currently available that has both advantageous traits is Tamamo-no-Mae. As a result, Tamamo survives surprisingly well for this encounter, and is a great choice to bring along if available.
  • Debuff Clear Support is extremely useful in this encounter to remove the Stun and Curse effects that the boss can use, along with any other deleterious debuffs.
  • Buff Removal can also be helpful, with Avenger of Shinjuku being a notable option, having Buff Removal as well as Class Advantage against the boss.
  • Evade/Invincibility Support can help the party survive the boss's AoE NP, particularly after the boss gains a full bar after 1st break.
  • Damage / NP Support is useful in helping the damage dealer quickly bring down the Boss's multiple break bars. Depending on the damage dealer's card color of choice, Skadi, Merlin, Tamamo, or Waver are all good options.
  • Last Stand Servants such as Heracles (Bond CE), Cu Chulainn (Alter), or Cu Chulainn can also help clean up the last hits of the boss if they are available.

Video Links

Quick Servant Suggestions

- Recommended
Demonic Beast DPS
Debuff Clear Support
Offensive Support
Last Man / Solo Servant
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About the Author(s)

Twitter: @NorseFTX

Content Director at GamePress. Passionate about fighting games, virtual/augmented reality technology, neuroengineering, and video games in general. Classical Piano Performance, Sprite Art, and Under Night In-Birth enthusiast.

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