

Introduction
Jack-O' is a 5-star Fire character in Epic Seven. Jack-O''s class is Warrior. Horoscope: Taurus.
On the Epic Seven tier list Jack-O' is D tier, 227th of the 386 characters ranked.
Other Fire characters in Epic Seven: Abigail, Achates, Adventurer Ras, ae-NINGNING, ae-WINTER, Afternoon Soak Flan and 79 more.
Best build for Jack-O'
From 1,231 player buildsArtifacts
3 options- 139%
Jack-O's Symbol - 237%
Merciless Glutton - 310%
Portrait of the Saviors
Gear sets
- 91%
Speed(4)
Penetration(2)
Typical stats
- Speed
- 227
- Attack
- 3,862
- Health
- 10,865
- Defense
- 911
- Crit Chance
- 101%
- Crit Damage
- 311%
Jack-O' in Real-Time Arena
On the Real-Time Arena usage list Jack-O' is D tier, 175th of 242: picked in under 0.1% of drafts at Champion and above this season (Fall 2026), winning 42% of the games Jack-O' plays.
- Pick rate0.03%
- Win rate41.51%
- Pre-ban rate0%
- Banned after pick13.19%
Pick rate by league
- Champion0.04%
- Warlord0.02%
- Emperor0.02%
Sets in RTA
Used, win rate- 82%, 42%
Speed4
Penetration2 - 9.0%, 38%
Destruction4
Penetration2 - 2.1%, 38%
Speed4
Critical2 - 1.5%, 50%
Rage4
Penetration2 - 0.6%, 50%
Speed4
Torrent2
Drafted with
Hard matchups
Artifacts in RTA
Used, win rate
Jack-O's Symbol43%, 42%
Merciless Glutton32%
Portrait of the Saviors13%
A Symbol of Unity3.8%
Tyrant's Descent3.6%
When it's drafted
Share, win rate- First player, pick 11.2%
- Second player, picks 1-21.9%
- First player, picks 2-34.8%
- Second player, picks 3-419%
- First player, picks 4-543%, 40%
- Second player, pick 529%, 42%
Most players enhance Throw Servant to +5 (87% of builds), Trick-or-Treat to +5 (97% of builds) and Forever Elysion Driver to +5 (98% of builds).
Profile
An artificial being that was created to stop Justice's revival. With half of the soul of Sol's past lover, Aria, she has a split personality: one is that of a collected adult, and the other is that of a child-like one. Therefore, in order to control her mood swings, she wears a mask when in battle.
Jack-O' carries the title "A mischievous fighter who fights together with Servants". Jack-O' is voiced by 五十嵐裕美 in Japanese and 이가라시 히로미 in Korean. Jack-O' was released on 24 March 2022.
Jack-O''s introduction: Your psyche is... Ehehe... Okay, yeah, let's just start.
Stats
- Health129th of 3915,784
- Attack38th of 3911,228
- Defense283rd of 391553
- Speed205th of 391109
- Critical Hit Chance62nd of 39123%
- Critical Hit Damage1st of 391165%
- Effectiveness0%
- Effect Resistance0%
- Dual Attack Chance3%
At level 60, 6 stars and fully awakened, before gear, artifact and Imprint. Each bar is measured against the highest value in the Epic Seven roster, and the place is out of every character with that stat.
At level 50 and 60, fully awakened
- HealthLevel 50, 5 stars: 4,687Level 60, 6 stars: 5,784
- AttackLevel 50, 5 stars: 1,014Level 60, 6 stars: 1,228
- DefenseLevel 50, 5 stars: 446Level 60, 6 stars: 553
- SpeedLevel 50, 5 stars: 109Level 60, 6 stars: 109
- Critical Hit ChanceLevel 50, 5 stars: 23%Level 60, 6 stars: 23%
- Critical Hit DamageLevel 50, 5 stars: 165%Level 60, 6 stars: 165%
- EffectivenessLevel 50, 5 stars: 0%Level 60, 6 stars: 0%
- Effect ResistanceLevel 50, 5 stars: 0%Level 60, 6 stars: 0%
- Dual Attack ChanceLevel 50, 5 stars: 3%Level 60, 6 stars: 3%
Base values before gear, artifact and Imprint. Passives that raise a stat in battle are not counted.
Skills
Damage calculator
Throw Servant
Skill 1gains 1 Soul
Attacks the enemy with a servant, with a 40% chance to stun for 1 turn. After attacking on the caster's turn, when the target has a debuff, activates Dust Attack as an extra attack. Dust Attack: Attacks the enemy by throwing them into the air, granting stealth to the caster for 1 turn.
Soul Burn (10 Souls): Increases effect chance to 100%.
- +1 +5% damage dealt
- +2 +5% damage dealt
- +3 +10% effect chance
- +4 +10% damage dealt
- +5 +10% damage dealt
Before enhancement
Attacks the enemy with a servant, with a 30% chance to stun for 1 turn. After attacking on the caster's turn, when the target has a debuff, activates Dust Attack as an extra attack. Dust Attack: Attacks the enemy by throwing them into the air, granting stealth to the caster for 1 turn.
Stun Cannot act for a certain number of turns.
Stealth When another ally is present, prevents enemies from selecting the bearer as a skill target. When suffering an attack that targets all allies, grants damage reduction and is dispelled when suffering damage from an attack.

Trick-or-Treat
Skill 2At the start of battle, grants Chain of Chiron to the ally in the back row for 2 turns. After an ally attacks, when the target has a debuff, increases Combat Readiness of the caster by 30%. This effect is activated after all of the attacker's effects have occurred.
Before enhancement
At the start of battle, grants Chain of Chiron to the ally in the back row for 2 turns. After an ally attacks, when the target has a debuff, increases Combat Readiness of the caster by 20%. This effect is activated after all of the attacker's effects have occurred.
Chain of Chiron (Undispellable) After attacking, inflicts a random debuff on the target for 1 turn.- Random Debuff Stun, Cannot Buff, Decrease Hit Chance, Restrict

Forever Elysion Driver
Skill 3Cooldown 3 turns (4 before enhancement), gains 2 Souls
Increases Attack of the caster for 2 turns, before attacking the enemy by swallowing them with a jack-o'-lantern. When the enemy is defeated, increases Combat Readiness of all allies by 20%. Penetrates the target's Defense by 50%. When the target has a debuff, damage dealt increases.
- +1 +5% damage dealt
- +2 +5% damage dealt
- +3 -1 turn cooldown
- +4 +10% damage dealt
- +5 +10% damage dealt
After awakening stage 3
Cooldown 3 turns
Increases Attack of the caster for 2 turns, before attacking the enemy by swallowing them with a jack-o'-lantern. When the enemy is defeated, increases Combat Readiness of all allies by 20%, and grants an extra turn to the caster. Penetrates the target's Defense by 50%. When the target has a debuff, damage dealt increases.
Increase Attack Increases Attack by 50%.- Penetrate Ignores the target's Defense when inflicting damage.
- Extra Turn Grants an extra turn.
Imprint
- BImprint Release: Effectiveness: 6%Imprint Concentration: Attack: 7%
- AImprint Release: Effectiveness: 9%Imprint Concentration: Attack: 11%
- SImprint Release: Effectiveness: 12%Imprint Concentration: Attack: 15%
- SSImprint Release: Effectiveness: 15%Imprint Concentration: Attack: 18%
- SSSImprint Release: Effectiveness: 18%Imprint Concentration: Attack: 21%
Imprint Release gives the bonus to the team; Imprint Concentration gives Jack-O' the bonus instead.
Awakening
Upgrade planner- Stage 1Attack +3%, Attack +20, Health +60
- Stage 2Critical Hit Damage +5%, Attack +20, Health +60
- Stage 3Attack +20, Health +60, enhances Forever Elysion Driver
- Stage 4Critical Hit Chance +8%, Attack +30, Health +80
- Stage 5Attack +6%, Attack +30, Health +80
- Stage 6Critical Hit Damage +10%, Attack +30, Health +80
Relationships
3
SolTrustToo close to be friends, but too far to be lovers. They travel the world together as bounty hunters.
DizzyTrustIn a broad sense, they share a mother-daughter relationship. Though they don't get to meet much, her heart always stays with Dizzy.
ElpheltTrustJack-O' considers Elphelt to be like her own child...or even sister. Jack-O' wishes for her happiness as she went through a lot.
Upgrade costs
Open in the plannerAwakening
- Stage 1
Flame Rune ×10 - Stage 2
Flame Rune ×15
Greater Flame Rune ×2 - Stage 3
Flame Rune ×20
Greater Flame Rune ×10 - Stage 4
Greater Flame Rune ×10
Epic Flame Rune ×2 - Stage 5
Epic Flame Rune ×6
Rare Fighting Spirit Catalyst ×15 - Stage 6
Epic Flame Rune ×10
Epic Fighting Spirit Catalyst ×10
Throw Servant enhancement
- +1
Gold ×4,000
MolaGora ×1 - +2
Gold ×4,000
MolaGora ×1 - +3
Gold ×29,000
MolaGora ×1
Rare Fighting Spirit Catalyst ×5 - +4
Gold ×47,000
MolaGora ×3
Rare Fighting Spirit Catalyst ×7 - +5
Gold ×80,000
MolaGora ×5
Epic Fighting Spirit Catalyst ×2
Trick-or-Treat enhancement
- +1
Gold ×4,000
MolaGora ×1 - +2
Gold ×4,000
MolaGora ×1 - +3
Gold ×29,000
MolaGora ×1
Rare Fighting Spirit Catalyst ×5 - +4
Gold ×47,000
MolaGora ×3
Rare Fighting Spirit Catalyst ×7 - +5
Gold ×80,000
MolaGora ×5
Epic Fighting Spirit Catalyst ×2
Forever Elysion Driver enhancement
- +1
Gold ×4,000
MolaGora ×1 - +2
Gold ×4,000
MolaGora ×1 - +3
Gold ×29,000
MolaGora ×1
Rare Fighting Spirit Catalyst ×5 - +4
Gold ×47,000
MolaGora ×3
Rare Fighting Spirit Catalyst ×7 - +5
Gold ×80,000
MolaGora ×5
Epic Fighting Spirit Catalyst ×2
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