Eustacia of Ruin

Unique Passive

Name: Dark Blood of Ruin

• Attack power and maximum HP increase by 10~20% with no conditions.
• Holds 'Dark Blood of Ruin'. From 5th Awakening and above, also holds the 'Power of Ruin' effect.
• Dark Blood of Ruin (effect): When taking lethal damage, revive with 40%~70% HP. Limited to 1 time per that game. Cannot be removed.
• Power of Ruin: Physical lifesteal +10%. Critical damage increases by 30% of the lost HP ratio. Removed when the 'Healing Reversal' effect is gained. Cannot be removed.
• After a combat attack, gain the 'Collision' effect.
• Collision: Per stack, reduces the TP consumption needed to cast Grima Collision by 1 and reduces damage taken by 4%. Removed when Grima Collision is cast. Max 5 stacks. Cannot be removed.
• When dealing lethal damage to an enemy, gain an extra action (cooldown 4~3).

Classes

Base job: Fighter. Tier 2 class includes the exclusive class Disruptor. Tier 3 classes are Striker / Revenant / Abaddon.

Striker:

• Class that can learn the exclusive skill Wind-Wave Rending Flash; has the exclusive Gladiator-Striker tree.
• Passive: physical penetration + critical rate rise by up to 30% with no conditions, and attack power rises by 40% when using an area skill.

Revenant:

• Class that can learn Call of Ruin.
• With no conditions, maximum HP, physical lifesteal, and critical rate increase by up to 30%.
• Critical rate additionally rises by 60% of the lost HP ratio, up to a maximum of 40%.
• Also, when maximum HP is not 100%, gains preemptive attack.

Abaddon:

• Exclusive class that can learn the exclusive skill, Eustacia's signature move Musin Myeolloe-ok / War God's Thunder-Destroying Prison.
• With no conditions, attack power and physical penetration increase by up to 25%.
• When fighting an opponent that has a debuff, the damage the user deals increases by 20%.
• After an attack, increases the duration of all debuffs by 1, except Action Control and Skill Control effects.
• Also, before a combat attack, removes 2 of the target's buffs; if there are no buffs to remove, applies the Armor Crack debuff.
• Armor Crack: Defense and resistance reduced by 30%. Max 2 stacks. Duration 2 turns.

Skills

Collapsing Thunder Strike learned from Disruptor:

• Consumes TP 1. Designate an empty tile within 4 tiles along a straight line in any of the 4 directions, teleport there, then deal 60% of attack power as damage to enemies within 1 ring around, pushing them outward 1 tile each. Also applies the Shock effect. Cooldown 3.
• Shock: Cannot counter. Duration 1 turn. Action Control attribute.

Call of Ruin learned from Revenant:

• Consumes TP 2. On use, lose HP equal to 40% of maximum HP. This effect cannot cause death. Then gain the 'Call of Ruin' effect and 3 stacks of the 'Craving of Ruin' effect, and gain an extra action. Cooldown 3.
• Call of Ruin:
• At the start of the turn, gain 3 stacks of Craving of Ruin.
• While holding the effect, direct control is impossible and the AI takes control.
• When using an active skill other than the Ultimate, instead of TP, consume HP equal to (TP consumption) x 10% based on the skill's base TP consumption value.
• Does not die from this effect.
• Lasts 2 turns. Cannot be removed.
• Craving of Ruin:
• Damage dealt increases by 20%.
• Maximum HP and physical lifesteal increase by 15% (does not increase with stacking).
• When an enemy ends its action within 1 ring around, deal 100% of attack power as damage and reduce a stack.
• Cannot be removed. Max 3 stacks. Duration 1 turn.

Musin Myeolloe-ok / War God's Thunder-Destroying Prison learned from Abaddon:

• Consumes TP 3. On use, lose HP equal to 30% of maximum HP, then designate an enemy and inflict 180% of attack power as defense-ignoring damage. This skill cannot be countered and cannot be guarded (protected). 'Combat' attribute. Cooldown 3.

Wind-Wave Rending Flash common skill learned from Striker: Noted as an excellent technique. (No detailed numeric description given in source.) (?)

Wind Rending Flash Gladiator-Striker common tree: Mentioned as a usable area skill. (No detailed description given in source.) (?)

Ultimate

Name: Grima Collision

• A transformation technique that turns Eustacia into 'Eustacia Grima'.
• The 3x3 space centered on Eustacia must be empty. On use, Eustacia is replaced by 'Eustacia Grima'; buffs/debuffs from before transformation are not removed but do not apply, are maintained with no change to duration, and are hidden.
• Also, if Eustacia had the 'Grima of Ruin' effect, generate a 'Grima Barrier - Ruin' area over a 9x9 tile region centered on Eustacia for 4 turns.
• Grima Barrier - Ruin: To enemies inside the area, apply maximum HP -20%, healing effects received and shield effects -50%; to allies inside the area, apply lifesteal +10%, damage dealt +20%.
• Eustacia Grima's base stats become 130% ~ 160% of Eustacia's base stats at the time of skill use, and rise up to 220% with full manifestation Ultimate Enhancement 3. Critical rate/damage and physical penetration are calculated separately and rise by 50% ~ 80%. Also, because Eustacia Grima is Eustacia herself, if she dies she does not revive and is treated as dead.

Eustacia Grima form details:

• Classification: Player unit the user controls and Large Monster.
• Basic Attack / Counter / Move available.

Eustacia Grima skills:

Crushing Blow:

• Consumes TP 2. Choose front/back/left/right and swing the sword in the chosen direction, dealing 130% of attack power as damage to enemies within range and applying 'Neutralize / Armor Crack' effects. Push back 1 tile. Cooldown 2 turns.
• Extends in a fan shape up to 6 tiles in the designated direction.

Spell of Ruin:

• Consumes TP 2. Range 1~5. Cast a spell on 1 enemy, inflicting 80% of attack power as dark magic damage and applying the 'Ruin' effect. Deal 40% dark fixed damage to enemies within 1 tile around the target and remove barrier-attribute effects. Cooldown 2 turns.
• Ruin: When attacked, explodes and deals dark fixed damage equal to 20% of the caster's attack power to the surrounding 8 tiles. Duration 2 turns. Dark attribute.

Cancel Transformation:

• Release the Grima state and return to human form. Various states return to those before transformation, but buffs/debuffs are removed, and HP becomes the same ratio based on the HP while in Grima state. Also, Grima Collision's cooldown increases by 3, and if you did not transform this turn, gain an extra turn.

Ultimate - Geuk Musin Myeolloe-ok / Extreme War God's Thunder-Destroying Prison:

• Consumes TP 5. On use, lose HP equal to 50% of maximum HP; this effect cannot cause death. Physical penetration increases by 30% and deal 150% of attack power as damage to enemies within a 7x7 range. Cooldown 5 turns.

Unique Passive - Grima of Ruin Grima form unique passive:

• Action Control immunity, Position Control immunity, Silence immunity. Does not receive the unique passive / class passive / equipment / artifact / rune effects held before transformation. At the start of the turn, gain 1 stack of the 'Grima Aftereffect' effect.
• Grima Aftereffect: Maximum HP -10%. Max 5 stacks. Duration permanent. Cannot be removed.

Exclusive Weapon

Name: Fang of Ruin

• Additional stats: attack power and physical penetration.
• When taking damage or when an enemy ends its action within 2 tiles around, receive the following buffs.
• General Hunger of Destruction: Per stack, attack power and critical rate increase by 3~8%. Removed after a combat attack. Lasts 2 turns. Max 4 stacks.
• Eustacia-exclusive Thirst of Ruin:
• Per stack, attack power and critical rate increase by 3~8%.
• At the start of the turn, if at max stacks, gain a re-action (cooldown 2~1).
• 5th Awakening and above: At the start of the turn, if at max stacks, gain the Thirst's Reserve shield (cooldown 1).
• Thirst's Reserve: Shield equal to 50~80% of attack power. Damage taken reduced by 10%. Lasts 2 turns. Cannot be removed. Shield.
• Removed after a combat attack. Lasts 2 turns. Max 4 stacks. Cannot be removed.

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Unit: Eustacia of Ruin - Legendary, Flame of Freedom, Unaffiliated. Source: Genesis War Mobile: Asura Project.

Awakening🔗

(not present as a structured stage list)

Note: no dedicated awakening section listing Stage 1/Stage 2/etc. Awakening effects are only mentioned in passing within the Performance text:

• At 5-awakening and above: passive gains Power of Ruin effect; the transformation Thirst of Ruin on the exclusive weapon gains "Thirst's Reserve" shield at turn start when at max stacks.
• Dark Blood of Ruin: revive at 40%70% HP when taking lethal damage. Base passive gives ATK and Max HP +1020%.
• Awakening strengthening of the passive: on revive, Dark Blood of Ruin inflicts Fear on the 2 surrounding tiles; Power of Ruin gains fixed-damage resistance when HP <= 20%.
• Full awakening with Ultimate Enhance 3: Eustacia Grima base stats rise to 220% (from base 130%~160%).

Artifacts🔗

(not present)

Note: "artifact" appears only as a word in the grima passive text. No named artifacts with effects are listed.

Release Date🔗

Original Korean release: Not stated in the overview. Per the version banner, Eustacia of Ruin released in version 3.4 first half dated 2026/5/6 = 2026-05-06 (KR).

Estimated global release: 2027-07-07.

Guide🔗

Note: the following is NamuWiki community assessment (KR server), subjective community opinion. No S/A/B tier rating is stated in this article.

• Overview: A crit-focused DPS that is a "glass cannon" but endures via high HP, lifesteal, and revive, and can transform into a monster (Grima). In PVE, especially raids, just equipping Call of Ruin and War God's Thunder-Destroying Prison lets you watch a DPS show every cooldown: HP drops to 1%, then a 100% crit lands defense-ignoring 180% damage, HP returns to 100%, then extra actions (from passive and the exclusive weapon) deal further burst.
• Weakness: still a glass cannon. Damage-reduction lines (defense, damage reduction) are absent at low awakening and only decorative at high awakening, so treat it as effectively none. The design intends her to get hit hard and recover via lifesteal; if you want survivability, invest in HP increase. HP scaling is efficient because passives carry big HP and strong lifesteal but almost no def/res/damage-reduction.
• PVP: Call of Ruin is hard to pick because it hands control to AI, but not using it leaves her short on firepower and TP, which is a downside. With 2-awakening passive strengthening, a viable play is to rush in turn 1, land one War God's Thunder-Destroying Prison, die, gain Collision, then with TP 1 do Grima Collision -> Crushing Blow and die again.
• Class recommendation: Revenant is recommended as the endgame class (grants HP/lifesteal, up to +70% crit rate via lost-HP condition, plus preemptive attack; best synergy with her passive and best survivability among her classes). Striker is passable but rarely adopted (exclusive skills mismatch her kit). Abaddon is a support-type class (buff strip, def/res-down debuff, debuff duration +1) worth using in special situations; it teaches her signature War God's Thunder-Destroying Prison so its raising priority is #1.
• Equipment (community): Armor - since Revenant needs only 30% crit rate, the Crow set plus stacking crit damage is cost-effective; watch not to overshoot 100% crit rate. Alternatively the Assassin set to secure ATK + crit dmg while getting crit rate elsewhere. Accessory - as Revenant, crit rate is very high so the Sawtooth Arrowhead is most suitable; the usual Ancient Shadow Plate is also a good choice.