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Core Fusion Eternal
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Core Fusion

Eternal — Outerplane Fire Mage Guide

3 star rarityFireMageEnchanter
Release date
April 21, 2026
Voice Actor
Jeannie Tirado
Birthday
05/01
Height
163 cm
Weight
43 kg

Chosen by the False Sun God... King Iota from another timeline, as a candidate for [Core Fusion], Eternal has now transformed into something that can no longer truly be called human. For a thousand years, she has faithfully continued to [function] for the preservation of Neo Eseph, all while listening to the screams and resentment of the living. And yet, how is she still able to retain her sense of self? Is it her talent and knowledge in soul-manipulating sorcery? Or her unshakable will, commanding the dead without losing her sanity? Or perhaps... is it the guilt that has never worn away, even after a thousand years? This hero has completed Core Fusion

Pros & Cons

Strengths
  • +An unparalleled debuffer capable of crippling the enemy team with a 3-turn and decrease, alongside , using Death Sentence
  • +Her Death Sentence provides crucial tactical advantage by reducing the of the enemy with the highest Attack by 20%
  • +Excels at neutralizing Earth enemies with Guiding Lantern, utilizing a effect to strip 2 buffs while simultaneously applying down and multiple stacks of
  • +Her Level 2 Core-Fused Passive is a massive power spike, granting her an Extra Turn after using her ultimate to immediately follow up with additional pressure
Weaknesses
  • −Requires monumental resource investment to unlock her full potential, specifically needing Level 2 Core Fusion for the Extra Turn mechanic and a Level 10 Broken Providence to safely bypass enemy reactions
  • −Heavily reliant on landing her debuffs to be effective, making her vulnerable to fast enemies that can apply team-wide or cleanse effects before she takes her turn
  • −Lacks hard crowd control (such as Stun or Freeze), meaning enemies can still act if they are not killed or sufficiently crippled by her statistical debuffs

Stats & Ranking

Base Stats

Combat Power (no gear, skills Lv5)24,429Lv.120
Attack1819(+615)
Defense1228(+307)
Health7326(+2014)
Speed138
Crit Chance15%
Crit DMG180%
0%
0%
0%
0%
Effectiveness190(+10)
Resilience130

Permanent stat bonuses, such as transcendence or skill passives, are included.

Transcendence6★CodexQuirks
Limit Break cost×250Gold2,000,000

Ranking

PvE TierA
PvP TierB
EE RankS
EE+10 RankB

Gifts

Berry
Wildflower
Phantom Bird's Egg
Leaf of World Tree

Exclusive Equipment

Exclusive Equipment

Broken Providence
Broken Providence

Main Stat Effectiveness vs Earth

Core Fusion Eternal's Exclusive Equipment

Effect

Own Effectiveness increases +100%

Effect (Lv.10)

Right after using Death Sentence, does not trigger an enemy's Counterattack, Revenge, or Agile Response.

Transcendence

6

ATKDEFHP+30%

+6% Ally Team Effectiveness

+1 Chain Passive Weakness Gauge damage

+25 Action Points at battle start

Burst Level 2 Unlocked

Burst Stage 3 Unlocked

Self Speed +1 upon entering battle

Skills

Skill Upgrade Priority
Peaceful DeathGuiding LanternDeath Sentence

Skill up rule of thumb:

  • Level 2 for Weakness Gauge damage
  • Effect chance, effect duration & cooldown reductions.
  • Damage increases (DPS only)

Chain passive can be left at level 2 until much later, the Weakness Gauge damage increase at level 5 is the only interesting part, so you can save skill manuals here until the more important skills are taken care of.

Peaceful Death

WGR 2Dual Target

Attacks 2 enemies and has a 100% chance to decrease the target's Defense for 2 turns.

Enhancement — Peaceful Death

+2+10% damage, +1 Weakness Gauge damage
+3+15% effect chance
+4+15% damage
+5+10% damage, +15% effect chance

Guiding Lantern

CD 3WGR 2Dual Target

Attacks 2 enemies. Has a 100% chance to remove 2 of the target's buffs and inflict Burn on the target for 2 turns. If the target is Earth, this attack cannot miss, decreases the target's Attack for 2 turns, and additionally inflicts Burn for 2 turns.

Enhancement — Guiding Lantern

+2+10% damage, +1 Weakness Gauge damage
+3-1 turn Skill Cooldown
+4+1 effect stack
+5+15% effect chance, +20% damage

Death Sentence

CD 4WGR 3Dual Target

Attacks 2 enemies and has a 100% chance to decrease all enemies' Defense and Speed for 3 turns. Additionally, has a 100% chance to inflict Unhealable on all enemies for 3 turns and decreases the Priority of the enemy with the highest Attack by 20%. If the target is Earth type, Miss will not occur.

Enhancement — Death Sentence

+2+10% damage, +1 Weakness Gauge damage
+3+15% effect chance
+4-1 turn Skill Cooldown
+5+20% damage, +1 turn effect duration

Core-Fused Passive

When Death Sentence is used, own Attack increases for 2 turns and gains an Extra Turn.

Enhancement — Core-Fused Passive

+2Gain an Extra Turn when Death Sentence is used

Burst

Burst 1
70

Change to Single Target Attack DMG greatly increases Own Barrier +1 turn (scales with own Max Health)

Burst 2
105

DMG Increase Target Burned +2 turns

Burst 3
140

Changes to Enhanced Skill Removes Buffs ▶ Steals Buff

Chain & Dual

Chain Passive

Chain Passive

WGR 5Dual WGR 2

Chain Companion Effect : After attacking, inflicts Burned on all enemies for 2 turns. (Ignores Resilience)

Dual Attack Effect : After attacking, decreases the target's Defense for 2 turns.

Enhancement — Chain Passive

+2+5% Dual Attack and Skill Chain damage, +1 Weakness Gauge damage
+3+5% Dual Attack and Skill Chain damage
+4+5% Dual Attack and Skill Chain damage
+5+5% Dual Attack and Skill Chain damage, +1 Weakness Gauge damage

Recommended Gear

Substat Priority

SPD
EFF
CHC
ATKeven
CHD
DMG UP%
Flat or %?
  • %% gives more per tick
  • flatFlat gives more per tick
  • evenWithin 5% of each other — either works
Level
Quirks
ATKeven+4% × 973 = +38.9 vs +40 flat

Per reforge tick on 6★ gear. Base at Lv.100 = stats + evolutions + quirks — equipped gear, transcendence and buffs do not change the answer. % wins above 1000 ATK.