Archdemon's Shadow

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Max CP18032
The manifestation of a corrupt emotion that permeates one's most vulnerable parts
The manifestation of chaos that's mixed with the power and souls of many beings. Though it takes the shape of a girl who was once a part of it, its essence is not of life but rather pieces of memories and corrupt energy. As it longs endlessly for new bodies, it now wanders to find a being that can contain it.

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Hero Stats

Hero CP: 18032
HP 4777
ATK 1316
SPD 108
DEF 715
Crit Hit Chance Crit Hit DMG Dual Atk Chance
15.00% 150.00% 5.00%
Effectiveness Effect Resist
18.00% 0.00%
Imprint Release

+Health %
SSS : +12.9% SS : +10.75% S : +8.6% A : +6.45% B : +4.3%
*Red tiles mark the effective area of a Devotion Skill.

Hero Tags

Preferred Content


Seal and Debuffs

Since the goal of the build is to have her apply seal as often as possible and to ramp her focus and she amplifies bulkiness, this puts her in a prime position to be a counter control mage. This means we should explore ways to make her as tanky as possible while maintaining respectable amounts of speed and effectiveness. 

1 thing to keep in mind is that she only needs enough effectiveness to hit tanks, bruisers, and DPS as the goal is not to debuff soul weavers, but to either circumvent them via bans or have other characters who can stun or silence to control them.


Since she's a prime counterattack candidate, the most obvious set is counter with a side of immunity. Outside of counter she'll be pretty good on anything with utility such as speed, revenge or even injury as her aoe extra attacks do happen fairly often.


Due to her reliance on seal, it is recommended to get the increased effect chance ASAP. Then we can focus on getting her bulk up in her S2, followed by effect chance on her S3. The last node of damage isn't necessary as Archdemon doesn't make the most use out of it since her damage doesn't rely on crit, but for players who use her a lot, it could be invested in to maximize that value over time.


Iela Violin - makes her the most versatile out of all the builds as it gives herself a way to strip immunity. This also makes her a hard counter to Remnant Violet if she inflicts seal before the attack, she has a high chance to dispel the evasion buff and subsequently activate her extra attack to blind him.

Crimson Moon of Nightmares - gives her the most consistency within a control composition that already has buff dispel. Not only does it make her counters and dual attacks more consistently seal, it also helps her synergize harder with heroes such as Cerise.

Abyssal Crown - is never a bad option on control mages, especially for those that have AoE extra attacks that can add to the chaos of a control mage fight.

Tagehel's Ancient Book - could be considered mostly as a auxiliary option for the other control mages on the team such as BRomann.

Sira-Ren - can always be a budget consideration as it's not very consistent with the debuffs but still has the potential to win players some fights.


HP %
Def %
Eff %
Def %
HP %
Atk %


Upgrade Priority

Early Mid Late
+4 +4 +4
0 +5 +5
0 +4 +4



An example of the type of team to run Archdemon in. What to look for when piecing together one of these teams is as much synergy between the unit's debuffs as possible. There are 2 sources of buff dispel for Archdemon so she can be used to her full potential. Cerise S1 can support Archdemon's S1 via dual attacks. FTene and Krau keeps the team safe with provokes and redirected provoke while Krau is even a source of extra provokes for FTene. 

With a team like this, players are looking to draft into units that heavily rely on passives to function such as Arbiter Vildred, Seaside Bellona or Tempest Surin. The debuffs will control the enemy while the AoEs and burns whittle down the enemy team and Krau has the ability to close out 1 key target with all the attacks he'll be taking from the redirected provokes. 

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Archdemon’s Shadow is a 5* Dark Mage released to commemorate Archdemon Mercedes’ status as the final boss of episode 1. She is among the waves of control mages that are taking over the meta. Archdemon stands out as the first hero to have the debuff seal, which is used to disable hero passives, critical to shutting down the myriad of moonlight heroes currently dominating the meta.



Archdemon’s S1 grants a 50% (75% at max) chance to inflict seal before an attack and can be soulburned to apply at 100%. The big thing to note here is that the seal would be applied prior to the attack, applying the debuff regardless of a hit or miss. This means heroes such as Remnant Violet will not be able to dodge said seal, completely disabling his ability to slip by damage and debuffs. Heroes such as Tempest Surin will lose their ability to passively cleanse the seal and will take full damage from any further attacks.

Damage Reduction Passive

At max skill up, Archdemon can reduce damage from criticals by 30%, this massively extends her durability in long drawn out fights in all environments, enabling her on some slower, tankier builds.

Extra Attack Passive

Part 2 of her passive gives Archdemon a chance to activate an AoE extra attack that applies decreased hit chance, a good AoE debuff. But since she is a mage, this opens her up to many builds with her artifact that allows her to proc different debuffs with said extra attacks, giving her a much more flexible role in a control team.


Too Slow

The most common criticism against Archdemon is the fact that she’s too slow. While seal is a game changer, it does not apply at a 100% rate by default and can only hit 1 target at a time. The debuffs granted by her S2 and S3 while plentiful, none of which are enough to be win conditions on their own and cannot be reliably used since S2 is a random proc and S3 requires 5 focus. This creates a scenario where if she pops off, Archdemon will be everywhere in a fight and if she does not proc, she’ll be a unit hitting S1s that barely tickle against the enemy team.

Hard Countered by Immunity

Archdemon has no built in way to dispel immunity, which disables a massive part of her skill kit. It is up to the player to set her up with ways to strip buffs and make sure she is not stuck playing against immunity whether it means to pair her with heroes such as Cerise and BRomann or have her carry Iela Violin.

Double Edge of Extra Attack

Since Archdemon herself cannot strip buffs, she plays a dangerous game when against common meta heroes such as Last Rider Krau, Roana, and Seaside Bellona that thrive off of being hit by AoE/extra attacks if she cannot seal them properly, she will become a negative asset to her team.

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+1 Souls
Has a 50% chance to seal the enemy for 2 turns, before attacking with lightning.

Soul Burn Effect
-10 Souls

Increases effect chance to 100%.
Skill Enhance
Effects and Multipliers
Decreases damage suffered from a critical hit by 20%. When more than one damage reduction effect is granted, only the strongest effect is applied. After using Touch of Chaos, has a 35% chance to activate Burst. Effect chance is doubled when the target is sealed.

Burst: Attacks all enemies, with a 60% chance to decrease Hit Chance for 1 turn, before increasing the caster's Combat Readiness by 25% and gaining 1 Focus.

Skill Enhance
Effects and Multipliers
Skill 3: Dissolution
+5 Souls
Attacks all enemies with the power of Ilryos, with a 75% chance each to inflict two burn effects for 2 turns. Grants the caster an extra turn.

Attacks all enemies with the power of Ilryos, with a 75% chance each to inflict two burn effects for 2 turns. Grants the caster an extra turn. This skill cannot trigger a counterattack.
Skill Enhance
Effects and Multipliers


Attack +3% Attack +20 / Health +60
Effectiveness +6% Attack +20 / Health +60
Health +6% Attack +30 / Health +80
Attack +6% Attack +30 / Health +80
Effectiveness +12% Attack +30 / Health +80
Attacks all enemies with the power of Ilryos, with a 75% chance each to inflict two burn effects for 2 turns. Grants the caster an extra turn.
Ability Upgrade
Attacks all enemies with the power of Ilryos, with a 75% chance each to inflict two burn effects for 2 turns. Grants the caster an extra turn. This skill cannot trigger a counterattack.
Stat Increase
Attack +20 / Health +60

Campsite Stats

Campsite Topic

Unique Comment
Joyful Memory