Seven Deadly Sins: Grand Cross Game Wiki

Hero Rating & Base Stats

PVP (Normal) 10 / 10
PVP (Elite) 10 / 10
PVE 7 / 10
Unique Ability 9 / 10
Red Demon 2 / 10
Gray Demon 10 / 10
Howlex 3 / 10
Bellmoth 4 / 10
Hraesvelgr 6 / 10

Green festival merlin stat bar.png

Hero Advanced Stats

Green festival merlin advanced stat.png


Mana Ballista
Icon merlin kid ssr type01 skill 01.png Rank 1 Skillicon damage.png Inflicts Power Strike damage equal to 190% of Attack on one enemy.
Rank 2 Skillicon damage.png Inflicts Power Strike damage equal to 285% of Attack on one enemy.
Rank 3 Skillicon damage.png Inflicts Power Strike damage equal to 475% of Attack on one enemy.

Double Mana Fusion
Icon merlin kid ssr type01 skill 02.png Rank 1

Skillicon damage debuff.png

Inflicts damage equal to 110% of Attack on all enemies. Infects for 1 turn.
Rank 2

Skillicon damage debuff.png

Inflicts damage equal to 180% of Attack on all enemies. Infects for 1 turn.
Rank 3

Skillicon damage debuff.png

Inflicts damage equal to 280% of Attack on all enemies. Infects for 2 turns.


All Elemental
Icon merlin kid ssr type01 special 01.png Inflicts damage equal to 400 / 440 / 480 / 520 / 560 / 600% of Attack on all enemies and creates a barrier equal to 5 / 8 / 11 / 14 / 17 / 20% of damage, taking damage only from basic stats. (Excludes Rupture effect)


Bargaining With the Gods
Icon exclusive skill 1887501.png The hero's damage taken from skills during the enemy turn does not exceed 40% of Max HP. Increases Attack-related stats by 1% for every 4% of remaining HP when using skills.

Hero Guide

[Divine Protection] Merlin, the Daughter of Belialuin, more commonly known as Festival Merlin, “True Form” Merlin, or Loli Merlin, is an HP-attribute hero who was Globally released on April 13th, 2021 as the 6th Festival Hero of 7DSGC. Like pick-up events, she is a guaranteed reward after completing the loyalty gauge for spending 900 Diamonds.

Festival-exclusive units are known to be one of the best heroes in the game. In Festival Merlin’s case, she is a top-tier damage dealer used extensively in PVP, countering most 1-shot damage dealers with her Unique ability. She innately has increased Attack-related stats -- inflicting more damage to enemies when her HP bar is high.

She’s also exceptional in PVE  particularly in Story Mode battles and Gray Demon Death Matches. Her skill effects are Infect (Restricts enemy recovery-related stats, disrupts healing) and Power Strike (Additional damage equal in proportion to target’s Resistance) which are highly effective against bosses and tanky heroes. Her Ultimate Move also provides protection to maintain a high HP percentage.

Stats-wise, Festival Merlin boasts high base attack-related stats (Attack, Pierce Rate, Crit Chance, and Crit Damage) and is further amplified by her Unique ability. She also has a high HP, Crit Resist, and Crit Defense to aid her survivability. However, she has low base Defense, Regeneration Rate, Recovery, and Lifesteal which requires healing from a support hero in case HP recovery is needed.


  • Counters all 1-shot burst damage dealers. Limits damage received to 40% Max HP per skill (including Ultimate)
  • Destroys tanky heroes with Power Strike
  • Insane single-target and AoE damage caused by Unique ability
  • Highly effective in PVP, especially in Elite (Geared)


  • Low secondary HP-related stats (Regeneration Rate, Recovery, and Lifesteal)
  • Does not pair well with Green Halloween Gowther (one of the best supports) because both heroes’ race is Unknown
  • Enemies with range evasion like Bellmoth boss can be her all range attacks ineffective on it

Skill Review

Mana Ballista - A single-target skill with Power Strike effect, similar to Red Sariel’s Tornado. Boosted by her Unique ability to increase damage, Festival Merlin can potentially one-shot any opponent even against tanks & attribute-disadvantage heroes.

Double Mana Fusion - This AoE skill is mainly used to disrupt enemies from recovering HP. But with the help of her Unique ability, this skill can also inflict fatal damage to multiple heroes while casting with a high HP percentage.

Ultimate: All Elemental - Inflicts respectable AoE damage starting at 400% and up to 600% of her attack. This Ultimate can potentially deal a devastating blow while casting with a high HP percentage. Festival Merlin additionally creates a barrier on herself based on the amount of damage dealt. While the barrier is active, all Skill Effects are negated (Ex: Amplify, Charge, Sever, Pierce) except for Rupture. Upgrading her Ultimate will also strengthen the Barrier.

Unique: Bargaining With the Gods - Festival Merlin’s trademark allows her to survive one-shot burst attacks, limiting the damage received by 40% of her Max HP per attack. In perspective, an enemy has to burst Festival Merlin 3 times from full HP to defeat her, no matter how high the damage is inflicted by the enemy.

Moreover, Festival Merlin increases her Attack-related stats by 1% for every 4% of remaining HP, which means more damage is dealt if her HP percentage is high. At full HP, she gains a 25% increase in Attack, Pierce Rate, Crit Chance, and Crit Damage.


Equipment Set - Onslaught (Attack) / Congeniality (Crit Damage) or Iron Wall (Defense)

Bracer/Ring - Full Attack or Attack & Crit Damage
Necklace/Earring - Defense
Belt/Rune - HP

Attack/Crit Damage sets provide the highest damage output. You can alternatively use Attack/Defense sets to add more survivability and Combat Class.

PVP - Festival Merlin particularly shines in Geared (Elite) PVP where percentages of her stats can be increased further. She directly counters a lot of burst damage dealers notably “The One” Escanor. She has an immensely high base Combat Class and can easily destroy enemies with high Resistance (particularly tanks).

PVE (Story / Farm / Sub-Quests / Boss) - She can clear most of the PVE content with ease and has a decent clear time because of her AOE skills. Her skill effects are also effective against story mode bosses.

Early Game PVE - She sufficiently provides a much-needed power to clear hard stages and major roadblocks of the game.

Gray Demon - Festival Merlin has the attribute advantage and her ranged attacks go through the demon’s flight buff. Her “Mana Ballista” deals tremendous damage because of the demon’s high Resistance.

Training Grotto - She is mainly used as a counter to Speed-type (Blue) Illusion Ambers, and all Level 3 Blue Goddess Ambers [Goddess Amber Illusion] Hendrickson, [Blue Amber] Obsessed Knight, and [Blue Amber] Warzone Glutton.

Association With Stat Increased
Red Demon Meliodas Attack +280
Green Demon Meliodas Attack +280
Blue Demon Meliodas Attack +280
Green Escanor Resistance +24.6%
Red Escanor Resistance +24.6%

Holy Relic

Icon weapon merlin kid 0551 c.pngGolden Apple of Idun



Merlin is the Boar's Sin of Gluttony of the Seven Deadly Sins. She is regarded as the greatest mage in Britannia. Her Sacred Treasure is the Morning Star Aldan, a floating orb she can summon at will and often uses in conjunction with her spells and her inherent power Infinity. The name "Merlin" is actually an alias as her true name is unpronounceable to humans.