Welt
Situational standard—Welt delays and shreds as Imaginary Nihility. Ultimate “Synthetic Black Hole” hits every enemy on the field in one cast. Best with Acheron / Dr. Ratio / Boothill. EHR for Imprison; often a debuffer flex not a carry. Skip when limited Nihility already cover both sides.
Welt is a 5★ Imaginary Nihility Debuffer. Skill “Edge of the Void” is the primary in-combat spend. Ultimate “Synthetic Black Hole” is the payoff window for damage or team utility. This Phase 1 page covers kit text, gear targets, and pull notes—team comps stay empty until Phase 2.
Overview
Quick Build
Light Cone
In the Name of the World
Signature BiS when owned.
Relic Set
Pioneer Diver of Dead Waters (4pc) + Pan-Cosmic Commercial Enterprise (2pc)
Standard Nihility relic direction for Welt.
Body
Effect Hit Rate
Main stat
Feet
SPD
Main stat
Sphere / Rope
Imaginary DMG% · ATK%
Substats
EHR (to threshold) > SPD > ATK% / CRIT
Strengths
- Ultimate “Synthetic Black Hole” hits every enemy on the field in one cast—level this before polishing filler traces.
- Skill “Edge of the Void” rolls a base-chance debuff that wants Effect Hit Rate—that is how Welt applies pressure between Ultimates.
- Talent “Time Distortion” When hitting an enemy that is already Slowed—ignore it and Welt plays like a worse generic Nihility unit.
- Learning when to hold vs spend “Edge of the Void” is the difference between a clean Welt cycle and a wasted Skill Point.
Weaknesses
- Several Welt effects roll “base chance”—without enough Effect Hit Rate, Exposed/Shock/DEF shred simply misses on tanky bosses and the rotation feels empty.
- If Energy or Skill Points starve “Synthetic Black Hole”, Welt spends turns on Basics and the kit’s advertised multipliers never show up on the combat log.
- Spamming “Edge of the Void” every turn without watching Skill Points strands the rest of the team—Welt is often the SP sink.
- If “Synthetic Black Hole” is still offline at the end of a MoC cycle, the build is usually Energy/ERR or rotation order—not a missing CRIT roll.
Trace Priority
Edge of the Void carries most of the kit’s damage or utility—level this first.
Synthetic Black Hole supports the main rotation—raise after the top priority traces.
Time Distortion supports the main rotation—raise after the top priority traces.
Gravity Suppression is last priority outside of filling trace materials.
Stat Priority
Open with Technique if it helps, spend Skill to advance the kit’s resource, and hold Ultimate for the damage or buff window. Exact teammate order lands in Phase 2.
Open supports first, then spend the carry’s Skill/Ult inside the buff window. Exact order varies by the team tab above.
Light Cones
5★ · Path cone
Increases the wearer's DMG to debuffed enemies by 0.24%. When the wearer uses their Skill, the Effect Hit Rate for this attack increases by 0.18%, and ATK increases by 0.24%.
Why it works —Signature / best-in-slot when owned—passive lines up with Welt’s kit triggers.
5★ · Path cone
Increases the wearer's Effect Hit Rate by 0.24%. When the wearer deals DMG to an enemy that currently has 3 or more debuffs, increases the wearer's CRIT Rate by 0.12%. After the wearer uses their Basic ATK, Skill, or Ultimate, there is a 1% base chance to implant Aether Code on a random hit target that does not yet have it. Targets with Aether Code receive 0.12% increased DMG for 1 turn.
Why it works —Flexible alternative on the same path—equip if you already own it at higher superimposition.
4★ · Path cone
For every debuff the target enemy has, the DMG dealt by the wearer increases by 0.12%, stacking up to 3 time(s). This effect also applies to DoT.
Why it works —Best accessible option for most accounts—raise superimposition when copies drop.
4★ · Path cone
Increase the wearer's CRIT Rate by 0.08%. The wearer deals 0.24% more CRIT DMG to enemies that are currently Slowed or have reduced DEF.
Why it works —Budget path cone—fine while building the account.
Relics
Team Compositions
Welt enabling Himeko · Nova. Himeko · Nova, Sunday, Dan Heng · PT complete the remembrance shell.
Himeko · Nova is the damage seat in this shell — build the supports around their rotation, not the reverse.
Enabler / amp piece this page is built around — keep their buffs or debuffs online every cycle.
Sunday is the Advance / DMG amp — time their Skill/Ult for the carry’s damage window.
Dan Heng · PT shields the hypercarry and softens MoC / AS chip so glass DPS can commit to Skill spam.
Traces & Eidolons
Traces
Deals Imaginary DMG equal to 140% of Welt's ATK to one designated enemy.
Deals Imaginary DMG equal to 90% of Welt's ATK to one designated enemy and additionally deals 2 instances of DMG, with each time dealing Imaginary DMG equal to 90% of Welt's ATK to a random enemy. On hit, there is a 80% base chance to reduce the enemy's SPD by 10% for 2 turn(s).
Deals Imaginary DMG equal to 180% of Welt's ATK to all enemies, with a 100% base chance for enemies hit by this ability to be Imprisoned for 1 turn. Imprisoned enemies have their actions delayed by 44.0% and SPD reduced by 10%.
When hitting an enemy that is already Slowed, Welt deals Imaginary Additional DMG equal to 75% of his ATK to the enemy.
After using Welt's Technique, create a Special Dimension that lasts for 15 second(s). Enemies in this Special Dimension have their movement speed reduced by 50%. After entering battle with enemies in the Special Dimension, there is a 100% base chance to Imprison the enemies for 1 turn. Imprisoned enemies have their actions delayed by 20% and SPD reduced by 10%. Only 1 Dimension Effect created by allies can exist at the same time.
Eidolons
After using Ultimate, Welt gets enhanced. Then, the next 2 time(s) he uses Basic ATK or Skill, deals 1 extra instance of Additional DMG to the enemy target. The Additional DMG dealt when using Basic ATK is equal to 50% of Basic ATK DMG multiplier. The Additional DMG dealt when using Skill is equal to 80% of Skill DMG multiplier.
Is it worth getting?
Modest E1: After using Ultimate, Welt gets enhanced. Helpful padding, not a build-defining unlock.
When his Talent is triggered, Welt regenerates 3 Energy.
Is it worth getting?
Kit add-on: Refunds Energy when the listed trigger fires. Evaluate against your supports—pull only if that specific clause solves a problem you actually hit.
Skill Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
Is it worth getting?
Skill + Basic ATK levels only (+2). Free if you roll into it; never spend currency aiming for E3.
When using Skill, increases the base chance of reducing the attacked enemy target's SPD by 35%.
Is it worth getting?
Side-grade: When using Skill, increases the base chance of reducing the attacked enemy target's SPD by 35%. Happy if it drops; not a planned stopping point.
Ultimate Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
Is it worth getting?
Ultimate + Talent levels only (+2). Skip as a goal—grab it if you overshoot toward E6, never hard-pity for it.
When using Skill, deals DMG for 1 extra time to one random enemy.
Is it worth getting?
Whale ceiling: When using Skill, deals DMG for 1 extra time to one random enemy. Only chase if Welt is your dedicated Nihility main and E0–E2 already feel finished.
Welt clears endgame content at E0 with proper supports and relics. Chase eidolons only after Light Cone and team foundations are online. First stop: E0. Endgame target: E0.
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