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

All Viessa Guides
Viessa Builds	Ultimate Viessa Builds

Best Viessa Build for Hard Mode

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Descendant Modules						Weapons and Modules
Reactor and External Components						Playstyle Tips
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Viessa Hard Mode Build Showcase

Check out this 30-second Devourer clear using our Viessa Hard Mode Build!

Note: In this video, we have the Slayer Set equipped on Viessa; however, after extensive testing, we've determined that it is better to use the Polar Night Set, which we recommend in the External Component section!

Best Viessa Modules (Hard)

More Modules can be seen by scrolling horizontally.

The build is all about spamming skills with high Critical Hit and low cooldown. The set-up was made possible using 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 slotting in Cooldown Reduction, Skill Damage, and survival modules, then start building Skill Range and Skill Critical Hit modules after. Once everything is slotted in, your skills would crit for millions while having close to 90% Cooldown Reduction.

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 choose to replace the following modules to squeeze in more damage or survivability, depending on which modules you have or prefer. Some of these are ideal when mobbing, like the MP Collector module.

Another solid Skill Module worth mentioning is the Hypothermia. This module can be slotted in as a substitute for Cold-Bloodedness; however, it would slightly change the core aspect of the build and would require you to build for Skill Power Modifier and Singular Damage instead.

Best 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 works great with most, if not all, descendants in the game, and Viessa is no different. Having a weapon with high stats while being extremely mobile and having AoE burst capabilities is definitely good to equip for any kind of activity.

An optional weapon you can get is the Clairvoyance, due to its unique ability to reduce enemy Chill Resistance by 20% and Action Speed by 70%. This works extremely well with 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, you'd want those that would give you Firearm ATK, Critical Hit Rate and Damage, and Weak Point Damage to increase the damage output of your weapon. Chill Enhancement is the default module that goes with Viessa's element, but you could replace it with other enhancement modules depending on the enemy's weakness.

The same concept would apply to 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 slot in Superconductivity Charge by removing Fire Rate UP to have a longer firing time, allowing you to have higher uptime on the debuff.

Best Weapons Tier List

Best 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 great.

The best External Component set for 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

Viessa Playstyle Tips

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

Cast Cold-Bloodedness Before Spamming Skills

Keep in mind to always cast your Cold-Bloodedness skill to take advantage of the effects brought by the Cold-Bloodedness module. You can determine the length of Cold-Bloodedness by checking a green icon located next to your character.

Make sure to cast Cold-Bloodedness before the buff ends so that you can take advantage of the 20% Cost Reduction when recasting your buff.

Cold-Bloodedness Module

Charge Clairvoyance to Level 2 or Higher

If you're going to use Clairvoyance, make sure to always hit enemies with the level 2 or 3 charge to benefit from 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 to have 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 Viessa Builds for Normal Mode

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Descendant Modules	Weapon and Modules
Best Reactor	Best External Components
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Best Viessa Modules (Normal)

Best 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 selected modules focus on maximizing Viessa's low skill costs and cooldowns by honing in on 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 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 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.

Once you get to higher levels, you can start considering Clairvoyance as an optional weapon for Collosus fights.

Best Weapons Tier List

Best 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, Blizzard and Ice Sphere. 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 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 Viessa

Unlock Using the Research Institute

Research Time	Cost
16:00:00	400,000

Required Research Material	How to Get
Viessa Code x1	・Intercept Battle: (Common) (Executioner) Amorphous Material Pattern: 018 required ・ Intercept Battle: (Common) (Devourer) Amorphous Material Pattern: 030 required ・ Intercept Battle: (Hard) (Swamp Walker) Amorphous Material Pattern: 095 required ・ Echo Swamp (Hard) - Abyssal Void Fusion Reactor - Echo Swamp Derelict Covert
Viessa Enhanced Cells x1	・Research Research Materials Needed: ・Repton x422 ・Semi-permanent Plasma x290 ・Fusion Plasma Battery x40 ・Viessa Enhanced Cells Blueprint x1
Viessa Spiral Catalyst x1	・Research Research Materials Needed: ・Superfluid x571 ・Hardener x386 ・Synthesized Artificial Biometal x99 ・Viessa Spiral Catalyst Blueprint x1
Viessa Stabilizer x1	・Research Research Materials Needed: ・Compound Coating Material x239 ・Monomolecular Extractor x499 ・Common Carbon Activator x14 ・Viessa Stabilizer Blueprint x1

You can unlock 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 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 Viessa in the Shop instantly unlocks the Descendant, allowing you to skip the item requirements and research time.

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Viessa Basic Info & Stats

Viessa Basic Info
Viessa The Cold-Blooded Hunter	Role	Debuffer
	Element	Chill
Description
"A debuffer who uses Chill at will. 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
1748	495	4.88	187	878

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.

Viessa Exclusive Equipment

Arche Refrigerant Release Drone

The Arche Refrigerant Release Drone is a battle sub-system modified specifically for Viessa. It uses thermal sensors to automatically track down and attack the Vulgus who become colder than their surroundings, i.e. enemies that have been attacked by Viessa.

The drone is linked to Viessa's Arche; when Viessa uses her abilities, the drone is summoned automatically.
Various drone technologies have been researched to enhance Viessa's battle capabilities. The very first fruit of such efforts was the Arche Refrigerant Release Drone. Since then, it became possible to link the Arche of other Descendants to dedicated drones and turrets, and Viessa would sometimes joke that she was what started the Arche drone technology."

Viessa Skins

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

All Viessa Head Skins

Albion Academy Cadet	Viessa's Classic Maid Uniform	Viessa's Bloody Rose
Heat Detector	Icon of the Era	Ash Gray Haircut
Summer Vacation

All Viessa Body Skins

Albion Academy Cadet	Viessa's Classic Maid Uniform	Viessa's Bloody Rose
Snow Queen	Assassin	Summer Vacation

All 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 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 Viessa Ecive Skins

Continuity	Bio Scan	Heart

All Viessa Full Body Skins

Panda's Adventure

Dinosaur Pajamas

All Viessa Grappling Hook Skins

Special Supply

Advanced Material Engineering

All Viessa Make Up Skins

Butterfly	Intensity	Flower Scent

All Viessa Spawn Skins

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

The First Descendant Related Guides

List of All Characters

All Base Characters

Ajax	Blair	Bunny
Enzo	Esiemo	Freyna
Gley	Hailey	Jayber
Kyle	Lepic	Luna
Sharen	Valby	Viessa
Yujin	-	-

All Ultimate Characters

Ultimate Ajax	Ultimate Bunny	Ultimate Freyna
Ultimate Gley	Ultimate Lepic	Ultimate Valby
Ultimate Viessa	-	-

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