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Joint Challenge

Annihilator — Outerplane Joint Challenge Guide

By SevihUpdated 2025-12-23
Annihilator Joint Challenge Guide

Joint Challenge boss. The boss gains on S1 and requires DarkDark units for optimal action point efficiency. Single target attacks are heavily penalized with 70% damage reduction and WG recovery. Non-attack skills deal 20,000 fixed damage to the boss.

Annihilator

Annihilator

LightLightStrikerStrikerLv.120
Immunities
Target Acquired

Target Acquired

Attacks an enemy. Upon attack, gains a Barrier for 1 turns.

Neutralize All Fronts

Neutralize All Fronts

Attacks all enemies. Upon attack, decreases all Enemies' Attack/Critical Hit Chance/Critical Damage for 9 turns, and reduces the Priority Gauge of all non-HealerHealer Enemies to zero.

Program Annihilation

Program Annihilation

Attacks all enemies. Upon attack, removes all Enhancement Effects from all enemies and inflicts Unbuffable for 9 turns.
Grants an extra turn after attack.

Plasma Oscillations

Plasma Oscillations

(Passive Effect)
Right after all attacks, does not trigger an enemy's Counterattack, Revenge, or Agile Response.

When hit by a single-target attack, final damage is reduced by 70%, and Weakness Gauge damage is not taken. Additionally, Weakness Gauge is recovered by 3. (Only the highest final damage reduction value applies.)

When an Enemy uses a skill that is not an attack, they take 10000 Fixed Damage twice.

Each time an Enemy takes an action other than Burst Skill/Dual Attack/Skill Chain, all DarkDark Enemies' damage increases by 30%.

The Action Point cost for non-DarkDark Enemies increases by 50%.

TheCursed/Fixed Damage the boss receives cannot exceed 10000.

All attacks deal more damage the fewer targets there are.

Enraged

Enraged

Becomes Enraged every 4 turns.

Enraged: Grants an irremovable effect to the caster that increases attack and reduces damage taken for 3 turns, and recovers Weakness Gauge by 10%. Enraged lasts for 3 turns.

Enraged Ultimate Skill: Used when Enraged ends.
Attacks all enemies, and resets skill cooldowns of all skills of the caster.


Tactical Tips

  • Boss gains on S1 - use to remove it.
  • DarkDark units have 50% reduced action point cost.
  • Single target attacks deal 70% reduced damage and restore 3 WG to the boss.
  • Non-attack skills deal 10,000 fixed damage to the boss twice.

Recommended Characters

Liselotte
Fire
Healer
Maxwell
Dark
Mage
Mystic Sage Ame
Light
Ranger

Liselotte, Maxwell, Mystic Sage Ame

Essential pick for score bonus.

Demiurge Vlada
Dark
Ranger
Eliza
Dark
Ranger
Epsilon
Dark
Striker
Gnosis Viella
Dark
Striker

Demiurge Vlada, Eliza, Epsilon, Gnosis Viella

to remove the boss's .

Monad Eva
Light
Healer
Dianne
Light
Healer
Viella
Earth
Healer

Monad Eva, Dianne, Viella

Alternative to Liselotte.


Suggested Teams

Recommended TeamRecommended Team

Your unit should have 240 speed (not over) to play before your DPS and remove the . Remember to count Liselotte's transcend speed bonus (+5 at 4★, +10 at 6★).


Combat Footage

Annihilator - Joint Challenge - Very Hard Modeby Sevih23/12/2025