Imaginary

Nihility

Welt

Seasoned Member of the Express Crew

TierS

RolesDebuffer · Amplifier · Main DPS

Release1.0

Welt is an Imaginary Nihility character transformed by his 4.2 Novaflare enhancement. His Ultimate Imprisons every enemy and applies Weightless for 2 turns: −40% DEF, an extra action delay on every hit, and up to +100% DMG for allies who attack them. This standard 5★ works as a debuffer, a delay-based pseudo-sustain or a main DPS, and he is the key enabler of Himeko • Nova's Decimation state.

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Light Cones

Lies Dance on the Breeze BiS

5★

Best support option (Cipher's signature): SPD and −16% DEF on all enemies, plus another −8% at 170 SPD.

SPD +18%; attacks inflict Bamboozle on all enemies (DEF -16% for 2 turns), plus Theft (DEF -8%) at 170 SPD or more.

Holiday Thermae Escapade

4★

4★ (Nameless Honor): DMG, and a 10% Vulnerability on attacked enemies.

DMG +16%, and attacks inflict Vulnerability, making the target take 10% more DMG for 2 turns.

Resolution Shines As Pearls of Sweat

4★

His most used Light Cone: a 4★ DEF reduction; needs Effect Hit Rate at low Superimposition.

Hits have a 60% base chance to Ensnare enemies, lowering their DEF by 12% for 1 turn.

Before the Tutorial Mission Starts

4★

4★: Effect Hit Rate, and Energy when hitting DEF-reduced enemies, which Weightless provides.

Effect Hit Rate +20%, and attacking DEF-reduced enemies regenerates 4 Energy.

Relics

Eagle of Twilight Line ×4

Best in slot and his most used set: a 25% action advance after each Ultimate for faster Weightless cycles.

Set effects

2pIncreases Wind DMG by 10%.

4pAfter the wearer uses their Ultimate, their action is Advanced Forward by 25%.

Messenger Traversing Hackerspace ×2

Sacerdos' Relived Ordeal ×2

Flexible option: +12% SPD from the two 2-piece bonuses.

Set effects

2pIncreases SPD by 6%.

Planar ornaments

Sprightly Vonwacq ×2

His most used ornament: a 40% action advance at the start of combat with 120+ SPD, for an early Ultimate.

Set effects

2pIncreases the wearer's Energy Regeneration Rate by 5%. When the wearer's SPD reaches 120 or higher, the wearer's action is Advanced Forward by 40% immediately upon entering battle.

Lushaka, the Sunken Seas ×2

Energy Regeneration, and +12% ATK for the first character in the lineup (your main DPS).

Set effects

2pIncreases the wearer's Energy Regeneration Rate by 5%. If the wearer is not the first character in the team lineup, then increases the ATK of the first character in the team lineup by 12%.

Main stats

Body

Effect Hit Rate

Feet

SPD

Planar Sphere

HP% / Imaginary DMG Boost

Link Rope

Energy Regeneration Rate / ATK%

Substat priority

1SPD 2Effect Hit Rate 3HP% 4DEF%

Stat targets

SPD: 134/143/160+ (170 for the extra DEF reduction of Lies Dance on the Breeze)
Effect Hit Rate: 70–80% (80% maxes Punishment's +80% ATK)
Energy Regeneration Rate rope for more frequent Ultimates

Talent priority

Skill

Talent

Ultimate

Basic ATK

Major Trace priority: Retribution (A2) > Judgment (A4) > Punishment (A6).

Light Cones

Those Many Springs BiS

5★

Top DPS option (Jiaoqiu's signature): 60% Effect Hit Rate frees your substats for CRIT, plus a hard-to-land Vulnerability debuff.

Effect Hit Rate +60%; attacks can inflict Unarmored (+10% DMG taken), upgraded to Cornered (+14% more) on targets under the wearer's DoT.

Along the Passing Shore

5★

Best general DPS option (Acheron's signature): high base ATK, CRIT DMG and DMG boosts, especially on his Ultimate.

CRIT DMG +36%; hits inflict Mirage Fizzle, against which the wearer deals 24% more DMG, and Ultimate DMG a further 24%.

In the Name of the World

5★

His signature (Stellar Warp): DMG against debuffed enemies, and Effect Hit Rate and ATK on his Skill.

DMG +24% against debuffed enemies, and the Skill gains +18% Effect Hit Rate and +24% ATK.

Holiday Thermae Escapade

4★

Best 4★ DPS option: high base ATK, DMG and a Vulnerability debuff.

DMG +16%, and attacks inflict Vulnerability, making the target take 10% more DMG for 2 turns.

Good Night and Sleep Well

4★

Classic 4★ DPS option: DMG for each debuff on the target.

DMG +12% per debuff on the target (up to 3 stacks), DoT included.

Relics

Pioneer Diver of Dead Waters ×4

Best DPS set: DMG and CRIT against debuffed enemies.

Set effects

2pIncreases DMG dealt to enemies with debuffs by 12%.

4pIncreases CRIT Rate by 4%. The wearer deals 8%/12% increased CRIT DMG to enemies with at least 2/3 debuffs. After the wearer inflicts a debuff on enemy targets, the aforementioned effects increase by 100%, lasting for 1 turn(s).

Wavestrider Captain ×4

Alternative: +48% ATK on his Ultimate turn once allies have targeted him twice with their abilities.

Set effects

2pIncreases CRIT DMG by 16%.

4pWhen the wearer becomes the target of another ally target's ability, gains 1 stack of "Help," stacking up to 2 time(s). If there are 2 stack(s) of "Help" when the wearer uses their Ultimate, consumes all "Help" to increase the wearer's ATK by 48% for 1 turn(s).

Planar ornaments

Pan-Cosmic Commercial Enterprise ×2

Best DPS option: Effect Hit Rate and ATK, which helps reach 80% for Punishment.

Set effects

2pIncreases the wearer's Effect Hit Rate by 10%. Meanwhile, the wearer's ATK increases by an amount that is equal to 25% of the current Effect Hit Rate, up to a maximum increase of 25%.

The Wondrous BananAmusement Park ×2

Top DPS pick, but only with Dan Heng • Permansor Terrae on the team (as in the Welt main DPS team below).

Set effects

2pIncreases the wearer's CRIT DMG by 16%. When a target summoned by the wearer is on the field, CRIT DMG additionally increases by 32%.

Rutilant Arena ×2

Last resort: its CRIT Rate helps, but his Talent's Additional DMG doesn't benefit from the Skill DMG bonus.

Set effects

2pIncreases the wearer's CRIT Rate by 8%. When the wearer's current CRIT Rate reaches 70% or higher, DMG dealt by Basic ATK and Skill increases by 20%.

Main stats

Body

CRIT Rate

Feet

SPD / ATK%

Planar Sphere

Imaginary DMG Boost / ATK%

Link Rope

ATK%

Substat priority

1CRIT Rate 2CRIT DMG 3Effect Hit Rate 4SPD 5ATK%

Stat targets

Effect Hit Rate: 70–80%+ (80% for the full Punishment bonus)
ATK: 2,200–2,600+
SPD: 134+ with Sunday 1 SPD slower, or base SPD with Sparkle
CRIT: the best ratio you can get while keeping Effect Hit Rate

Talent priority

Skill

Talent

Ultimate

Basic ATK

Same Trace priority as the support build. The DPS build shines most from E4, where Weightless also cuts All-Type RES by 30%.

Teams

Recommended teams

Himeko • Nova with Sunday

Himeko • Nova

Sunday

Welt

Dan Heng • Permansor Terrae

His most played team: Welt puts Himeko • Nova in Decimation, and her constant Assist Skills stack his delays and his Retribution DMG buff.

Nihility core

Himeko • Nova

Mortenax Blade

Welt

Huohuo

Welt and Mortenax Blade stack massive DEF reduction and Ultimate DMG bonuses, and Mortenax's frequent AoE hits keep the delays rolling.

Welt main DPS

Welt

Sparkle

Tribbie

Dan Heng • Permansor Terrae

Sparkle advances him and feeds Skill Points, Tribbie adds RES PEN, and Dan Heng • Permansor Terrae shields and buffs his ATK.

Guide

How to play

How he works

Synthetic Black Hole (Ultimate, 120 Energy). An AoE attack with a 100% base chance to Imprison for 1 turn (12% action delay, −10% SPD), then Weightless on every enemy for 2 turns, with no hit chance involved. Every hit on a Weightless enemy delays it by 4% (up to 8 times per target per turn).
Time Distortion (Talent). Weightless enemies have −40% DEF and −5% SPD. Whenever Welt hits a Slowed enemy, including a Weightless one, he adds Imaginary Additional DMG equal to 100% of his ATK.
Edge of the Void (Skill). 5 bounces of 72% ATK, each with a 75% base chance to Slow; every bounce that lands on a Slowed enemy also triggers his Talent's Additional DMG.
Retribution (A2). Allies who attack Weightless enemies gain +10% DMG per attack (up to 10 stacks, 2 turns). Welt also starts combat with 30 Energy.
Judgment (A4). His Basic ATK and Skill add one more instance of Additional DMG.
Punishment (A6). Every 10% Effect Hit Rate above 40% grants +20% ATK (up to +80% at 80%), and his Ultimate refunds 5 Energy.

Rotation

Use his Technique: enemies caught in its Special Dimension start the fight Imprisoned.
Use his Ultimate early (he starts with 30 Energy), then recast it before Weightless expires: timing it is the whole game.
Use his Skill in between to Slow, delay and stack Retribution; switch to Basic ATKs when Skill Points run low.

Tips

SPD is disproportionately important: the faster he and his team act, the more delays pile up and the easier it is to keep Weightless active.
His Minor Traces give 28% Effect Hit Rate instead of ATK, so reaching 80% for Punishment is realistic.
Save his Ultimate to push back an enemy about to unleash a dangerous attack or an extra action.
He is hard to play well: poorly timed delays can shift the turn order against you.

Strengths

Extremely versatile: debuffer, pseudo-sustain or main DPS
Huge amounts of action delay and Slow
Big AoE DEF reduction that can't be resisted
Up to +100% DMG for allies attacking Weightless enemies
Standard 5★ with excellent Eidolons

Weaknesses

Very hard to play properly: Ultimate timing is critical
Hungry for Skill Points and Energy
Badly timed delays can backfire
Needs a lot of stat investment

Notable dupes · Eidolon

Solid upgrade

His Skill and Ultimate add an extra hit of 40% of the Ultimate's multiplier (60% ATK) to Weightless targets.

Solid upgrade

3 Energy each time his Talent triggers (up to 15 per Skill against Slowed enemies): it solves his Energy issues.

Big upgrade

His strongest Eidolon: Weightless enemies also lose 30% All-Type RES, around +30% damage for the whole team.

Solid upgrade

+30% CRIT Rate and +60% CRIT DMG on his Skill and Ultimate against Slowed enemies; Prydwen notes it doesn't seem to apply to his Talent's Additional DMG.

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Updated September 25, 2026 · Version 4.5

Sources & references