This is a Ultimate Viessa build for normal and hard mode in The First Descendant. Read on to learn Ultimate Viessa's best builds, how to unlock, basic info, skills, as well as Ultimate Viessa's exclusive equipment and skins!

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Best Ultimate Viessa Build for Hard Mode

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Descendant Modules						Weapons and Modules
Reactor and External Components						Playstyle Tips
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Best Ultimate Viessa Modules (Hard)

More Modules can be seen by scrolling horizontally.

This build is similar to our Base Viessa Build since it is the best build for both Descendants.

The build is focuses on casting consecutive skills with high Critical Hit and low cooldown. The build relies on the multiple Cooldown Reduction modules together with the Cold-Bloodedness module, which will provide you with 20% Cooldown Reduction, 20% Skill Cost Reduction, and 5% Skill Power whenever you use your Cold-Bloodedness skill.

Prioritize getting in Cooldown Reduction, Skill Damage, and survival modules, then start building Skill Range and Skill Critical Hit modules after.

Modules Guide: List of Modules

Alternative Descendant Modules

Module Change			Explanation
Dangerous Ambush	>	MP Collector	Recommended for mobbing because you will often run out of MP with skill spamming
Battle of Stamina	>	Increased HP	Gives you more survivability but decreases one tick of damage with Blizzard skill
Increased DEF	>	Spear and Shield	Gives you less DEF but increases your Skill Power by a good amount
Emergency Measures	>	Skill Extension	Trading some Critical Hits for one more tick of Blizzard and longer duration of Cold-bloodedness

You can substitute these modules to gain more damage or survivability, depending on which modules you have or prefer. Some of these are ideal when mobbing, like the MP Collector module.

Other Skill Modules worth mentioning are the Hypothermia and Absolute-Zero modules. These modules can substitute Cold-Bloodedness to gain damage ticks on Chill Skills; however, it would change the core aspect of the build and would require you to stack Skill Power Modifier and Singular Damage instead.

Best Ultimate Viessa Weapons and Weapon Modules (Hard)

Weapon	Substat Priority
Thunder Cage	• Bonus Firearm ATK (vs. Colossus) • Firearm ATK • Firearm Critical Rate • Firearm Critical Hit Damage • Weak Point Damage • Rounds Per Magazine
Clairvoyance (Optional)	• Bonus Firearm ATK (vs. Colossus) • Firearm ATK • Firearm Critical Rate • Firearm Critical Hit Damage • Weak Point Damage • Rounds Per Magazine

The Thunder Cage is Ultimate Viessas go-to weapon due to its high stats with good mobility and AoE burst capabilities. This weapon shines in every activity and mission you would encounter in the game.

An optional weapon you can consider is the Clairvoyance, with its unique ability to reduce enemy Chill Resistance by 20% and Action Speed by 70%. This works great with Ultimate Viessa since it will increase the damage of all of her skills and will also prevent enemies from walking out of Blizzard's range.

Best Weapon Modules

More Modules can be seen by scrolling horizontally.

For Thunder Cage's weapon modules, get those that would give you Firearm ATK, Critical Hit Rate and Damage, and Weak Point Damage to increase your overall weapon damage. Chill Enhancement is the default module that goes with Ultimate Viessa, but you could replace it with other enhancement modules to match the enemy's weakness.

The same modules could be slotted for Clairvoyance; however, do note that you will have to level up modules again as the weapons mentioned have different bullet types. You'd also want to have Superconductivity Charge replace Fire Rate UP to have a longer firing time, allowing you to have higher uptime on the unique ability.

Best Weapons Tier List

Best Ultimate Viessa Equipment (Hard)

Equipment	Substat Priority
Frozen Mechanics Reactor	• Additional Skill ATK When Attacking Colossus • Skill Critical Hit Rate • Skill Critical Hit Damage • Chill Skill Power Boost Ratio • Tech Skill Power Boost Ratio • Skill Range • Skill Cooldown Reduction
Polar Night Auxiliary Power	• Max HP • Fire Resistance
Polar Night Sensor	• Max MP • MP Recovery in Combat • Chill Resistance
Polar Night Memory	• Def • Electric Resistance • MP Recovery Multiplier
Polar Night Processor	• Max Shield • Toxic Resistance

Note that External Components with set bonuses have fixed main stats.

The best Reactor for this build is a Frozen Mechanics Reactor, which boosts your high-damaging skills, Blizzard and Ice Shards. For substats, we recommend prioritizing Additional Skill ATK When Attacking Colossus to gain roughly about 20% extra damage against Colossus. Aside from that, any other matching utility or offensive substats would be ideal.

The best External Component set for Ultimate Viessa is the Polar Night Set. The set bonus will give you up to 60% Skill Critical Hit Damage and 17% Firearm Critical Skill Damage, which you can easily gain even when fighting bosses. This, together with the 6% Chill Power, makes the set better than the highly regarded Slayer Set.

List of Reactors

List of External Components

Ultimate Viessa Playstyle Tips

How to Play Ultimate Viessa
Cast Cold-Bloodedness Before Casting Skills Charge Clairvoyance to Level 2 or Higher Determine Your Polar Night Stack

Cast Cold-Bloodedness Before Casting Skills

Always cast your Cold-Bloodedness skill before casting your other offensive skill to take advantage of the Cold-Bloodedness module. You can determine the duration of Cold-Bloodedness by checking a green icon located next to your character.

Recast Cold-Bloodedness before the buff ends to take advantage of the 20% Cost Reduction when recasting your buff.

Cold-Bloodedness Module

Charge Clairvoyance to Level 2 or Higher

If you have Clairvoyance, make sure to always hit enemies with the level 2 or 3 charge to activate the weapon's unique passive. As long as you're firing the weapon, the debuff will continue to reapply itself.

You can determine a beam rifle's charge by looking at the bars on top of to the ammo indicator. Make sure you have the Superconductivity Charge module slotted in for faster charges.

Clairvoyance: How to Get and Stats

Determine Your Polar Night Stack

You can check how much Polar Night set bonus stack you have by checking a green icon next to your character. On that icon, a small number on the lower right will appear, determining how much stack you have overall.

Best Ultimate Viessa Builds for Normal Mode

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Descendant Modules	Weapon and Modules
Best Reactor	Best External Components
▲Jump to Hard Mode Build▲

Best Ultimate Viessa Modules (Normal)

Best Ultimate Viessa Modules
Mid-Air Maneuvering	Modifies the Grappling Hook to be cast mid-air. However, it can only be used once, and Charge Time increases by X %. Based on the Enhancement Level, increases Max Module Cpacity (current + X), decreases Charge Time Increase (current + X%).
MP Collector	When defeating an enemy, instantly recovers X% of Max MP at a X% chance.
Time Distribution	Skill Cooldown -X%, Max HP +X%
Focus on Chill	Chill Skill Power +X%, Skill Cooldown -X%
Skill Concentration	Skill Critical Hit Damage +X%
Skill Insight	Skill Critical Hit Rate +X%
Skill Expansion	Skill Effect Range +X%, applies only to certain skills for each Descendant
Increased DEF	DEF +X%
Increased HP	Max HP +X%
Nimble Fingers	Skill Cooldown -X%

The modules above focus on utilizing Ultimate Viessa's skill by lowering down the skill cost and cooldown, as well as improving their damage and critical hit capabilities.

Focus on getting your survival modules, followed by Skill Damage, Skill Range, Cooldown Reduction, and lastly, Skill Critical Hit Rate and Damage.

Modules Guide: List of Modules

Best Ultimate Viessa Weapon and Modules (Normal)

Weapon		Substat Priority
Thunder Cage		・Firearm ATK ・Firearm Critical Hit Rate ・Firearm Critical Hit Damage ・Weak Point Damage
Best Modules for Thunder Cage
Snowflake Conductor	When attacking enemies inflicted with Frostbite, Firearm ATK +X%.
Action and Reaction	Firearm ATK +X%, Recoil +X%
Weak Point Sight	Weak Point Damage +X%
Better Concentration	Firearm Critical Hit Damage +X%
Expand Weapon Charge	Rounds per Magazine +X%
Chill Enhancement	Adds Chill ATK equal to X% of Firearm ATK
Better Insight	Firearm Critical Hit Rate +X%
Fire Rate UP	Fire Rate +X%
Rifling Reinforcement	Firearm ATK +X%

Similar to most Descendants, Thunder Cage is Ultimate Viessa's best weapon in Normal mode due to how powerful and accessible the weapon is. This weapon set-up excels in both mobbing and boss fights due to how much damage it can deal while being extremely mobile.

Best Weapons Tier List

Best Ultimate Viessa Reactor (Normal)

Reactor	Substat Priority
Frozen Mechanics Reactor	・Chill Skill Power Boost Ratio ・Skill Critical Hit Rate ・Skill Critical Hit Damage ・Skill Cooldown Reduction

Using a Frozen Mechanics Reactor will further increase the damage of your high-scaling skills. For the substats, try to look for Chill Skill Power Boost Ratio together with other damage-boosting or utility substats.

Reactors Guide: List of Reactors

Best Ultimate Viessa External Components (Normal)

Set	Set Effect
Glacial Set	2-Set Effect: ・Chill Skill Power Modifier +8.6% 4-Set Effect: ・Skill Cost -2.8% ・Firearm Critical Hit Rate +5.9%
Substat Priority
Auxiliary Power	・Max HP ・Fire Resistance ・Kuiper Shard Drop Rate Increase Modifier ・Module Drop Rate Increase Modifier
Sensor	・MP Recover in Combat ・Max MP ・DEF ・Character EXP Gain ・Consumable Drop Rate Increase Modifier
Memory	・DEF ・Electric Resistance ・Firearm Proficiency Gain Modifier ・Gold Drop Rate Increase Modifier
Processor	・Max Shield ・Toxic Resistance ・Item Acquisition Distance Increase Modifier ・Equipment Drop Rate Increase Modifier

The Glacial set boosts your Chill Skill Power Modifier and also provides Firearm Critical Hit Rate with Skill Cost Reduction.

Note that although this is great to have, in the early stages it's best to prioritize survival, so go with whatever External Component will offer you more HP, defense, and elemental resistances.

External Components Guide

How to Unlock Ultimate Viessa

Unlock Using the Research Institute

Research Time	Cost
36:00:00	900,000

Required Research Material	How to Get
Ultimate Viessa Code x1	・Intercept Battle: (Common) (Pyromaniac) Amorphous Material Pattern: 038 required ・ Intercept Battle: (Hard) (Molten Fortress) Amorphous Material Pattern: 125 required ・ Vespers (Hard) - Abyssal Void Fusion Reactor - Vespers Moonlight Lake
Ultimate Viessa Enhanced Cells x1	・Research Research Materials Needed: ・Flectorite x656 ・Hellion x682 ・Insulated Metallic Foil x76 ・Ultimate Viessa Enhanced Cells Blueprint x1
Ultimate Viessa Spiral Catalyst x1	・Research Research Materials Needed: ・Superfluid x1285 ・Shape Memory Alloy x1039 ・Organic Biogel x59 ・Ultimate Viessa Spiral Catalyst Blueprint x1
Ultimate Viessa Stabilizer x1	・Research Research Materials Needed: ・Compound Coating Material x538 ・Monomolecular Extractor x1123 ・Artificial Biometal x79 ・Ultimate Viessa Stabilizer Blueprint x1

You can unlock Ultimate Viessa through the Research Institute in Albion. Note that to acquire a Descendant using research, you need all the required items and gold to unlock this character.

Research Institute

Purchase Ultimate Viessa Using Caliber

Alternatively, you can unlock Descendants by purchasing them in the Shop. This method only requires Caliber, an in-game currency that you can buy with real money. Purchasing Ultimate Viessa in the Shop instantly unlocks the Descendant, allowing you to skip the item requirements and research time.

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Ultimate Viessa Basic Info & Stats

Ultimate Viessa Basic Info
Ultimate Viessa Absolute-Zero	Role	Debuffer
	Element	Chill
Description
"Through the Ultimate Project, Viessa has gained immense power. She uses Chill to freeze enemies in place, unleashing Cold Snap-like attacks as she weaves her way between them."

Stats

DEF	Max Shield	Shield Recovery	Max MP	Max HP
1860	537	4.88	187	934

Ultimate Viessa Skills

Passive Skills

Skill	Type Effect
Ice Sphere	Tech Creates an Ice Sphere floating around her body when inflicting enemies with the Ice Shackle effect, proportional to the effect stage. The Ice Sphere will automatically fly towards nearby enemies and deal damage to the target and its surroundings.

Active Skills

Skill	Type Effect
Frost Shards	Fusion Fires an exploding Ice Beam, inflicting damage and Ice Shackle around the area it hits.
Frost Road	Fusion Increases Running Speed and Shield, and creates Ice Sheets on the ground where Viessa stands. When enemies come into contact with these Ice Sheets, they are inflicted with Ice Shackle.
Cold Snap	Fusion Releases an arc of cold air in front, inflicting damage and Ice Shackle.
Blizzard	Tech Creates a snowstorm that explodes over time, inflicting damage and Ice Shackle on enemies caught within.

Ultimate Viessa Exclusive Equipment

Ultimate Equipment, Emission-type Arche Battlesuit 'Absolute-Zero'

Discovered long ago in an Ancestors' facility with a temple-like appearance, this Ultimate equipment is designed from top to bottom for emission-type Arche users. Specialized gloves on the wrists connect directly to the user's veins via nanoparticle injection tubes. A helmet-type computing device calculates the Arche concentration in the blood in real time to aid in the efficient and powerful use of Arche abilities. Interestingly, the equipment was found in a temple-like place, and its appearance is reminiscent of priestly robes. In light of all this, the Magisters have concluded that the equipment was likely used in religious rituals by the Ancestors. If so, which gods did they worship, and why did those gods abandon the Ancestors?

Ultimate Viessa Skins

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Head	Body	Back
Chest	Ecive	Full Body
Grappling Hook	Make Up	Spawn

All Ultimate Viessa Head Skins

Ultimate Viessa's Absolute-Zero

All Ultimate Viessa Body Skins

Ultimate Viessa's Absolute-Zero

All Ultimate Viessa Back Skins

Baby Panda	Ammo Supply Box	White Rabbit Doll
Bear Cub	Satellite	Albion Rocket
Planetary Projector	Rocket Jet Pack	Double Z Wing
Run, Hamster	Advanced Material Backpack	Pink Salamander
Firefighting Tank

All Ultimate Viessa Chest Skins

Small Flashlight	HQ Access Card	Old Teddy Bear
Bunny-Ears Strap	Dynamite	Brave Squirrel
Emote Tag	Magister Researcher	Mark of Albion
Recorder

All Ultimate Viessa Ecive Skins

Continuity	Bio Scan	Heart

All Ultimate Viessa Full Body Skins

Panda's Adventure

Dinosaur Pajamas

All Ultimate Viessa Grappling Hook Skins

Special Supply

Advanced Material Engineering

All Ultimate Viessa Make Up Skins

Attention!	This character has no skins of this kind.

All Ultimate Viessa Spawn Skins

Magical Moment	Passion	Dismantling and Fusion
Snowman	Beyond the Unknown	Thunder and Lightning
Gale	Big Water Bomb	Wrong Direction

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