Hydro Catalyst

Vodyanitsa

Lingering Siren-Song

TierS
RolesSupport · Healer
Release7.1

Prima Donna of the Korolevskiy Troupe and a Water Imp who left her kin, Vodyanitsa is an HP-scaling Hydro support. One press of her Skill gives 16 seconds of healing, interruption resistance and Hydro and Cryo RES shred on a 16-second cooldown, which makes her a top pick for Freeze teams. In Stellar Swirl teams she also turns Stellar Vortexes into Wandering Vortexes that cut Anemo RES by 35%.

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Vodyanitsa

HP healer & shredder

Weapons

Hymn of the Maelstrom BiS
5★ · HP%
Signature: HP, healing and an ATK buff for the active character, boosted after Frozen or Stellar Swirl.
Healing stacks Max HP and gives the active character ATK based on the wielder's HP above 40,000, boosted by 75% after Frozen or Stellar Swirl.
Thrilling Tales of Dragon Slayers
· HP%
Excellent budget pick: HP% stat and a big ATK buff for the next character on switch.
On switching, the incoming character gains +24% ATK for 10s (once every 20s at R1, 48% at R5).
Prototype Amber
4★ · HP%
Craftable: HP%, extra team healing and Energy after the Burst.
Craftable: after a Burst, restores 12 Energy over 6s and heals the party for 4% HP every 2s.
Jadefall's Splendor
5★ · HP%
Large HP stat stick; its Energy refund helps if you use her Burst.
After a Burst or shield, restores Energy and grants up to +12% Elemental DMG based on Max HP, even off-field.
Everlasting Moonglow
5★ · HP%
HP% and Healing Bonus, a comfortable 5-star fallback.
+10% Healing Bonus; Normal Attacks gain DMG from Max HP and restore Energy after a Burst.

Artifacts

Tenacity of the Millelith ×4
Best overall: 20% HP, and her off-field Skill hits keep the party-wide 20% ATK buff up.
Set effects
2pHP +20%.
4pWhen an Elemental Skill hits, all nearby party members gain +20% ATK and +30% Shield Strength for 3s, even while the wearer is off-field.
Tenacity of the Millelith ×2
Vourukasha's Glow ×2
40% HP from set bonuses, to push her toward her HP targets.
Set effects
2pHP +20%.
2pHP +20%.
Song of Days Past ×4
Turns her constant healing into bonus damage for the active character.
Set effects
2pHealing Bonus +15%.
4pHealing is recorded for 6s, then the active character's next 5 hits deal extra DMG equal to 8% of the recorded healing (up to 15,000).

Main stats

Sands of Eon
HP%
Goblet of Eonothem
HP%
Circlet of Logos
HP%

Substat priority

1HP% 2HP 3Energy Recharge

Stat targets

  • Max HP 65,000: caps her Lead Vocal/Chorus bonus (+3,500 Hydro/Cryo DMG, +6,500 Stellar Swirl DMG); 60,000 already maxes Hymn of the Maelstrom's ATK buff
  • Energy Recharge 100–140% only if you use her Burst

Talent priority

Elemental Skill
Elemental Burst
Normal Attack

Level her Skill first: it holds the RES shred, the healing and the Lead Vocal buff. The Burst only matters if you plan to cast it every rotation.

Teams

Recommended teams

Skirk Freeze

Skirk
Furina
Vodyanitsa
Escoffier

Vodyanitsa heals for Furina's Fanfare, adds more Hydro/Cryo RES shred on top of Escoffier's, and keeps Skirk's Hydro/Cryo passive fully stacked.

Vesna Stellar Swirl

Vesna
Odette
Traveler (Cryo)
Vodyanitsa

Wandering Vortexes cut Anemo RES by 35%, and she heals the whole time Vesna is on the field.

Mizuki Stellar Swirl

Yumemizuki Mizuki
Odette
Traveler (Cryo)
Vodyanitsa

The same shell with the standard-banner Mizuki as the Stellar Swirl carry.

Guide

How to play

How she works

  • Rechitativ: Sonorous Dawn (Skill) deals AoE Hydro DMG and starts Song of Ages Past for 16s. During it, the Horn of Spring's Call strikes an enemy every 3s, every hit lowers Hydro and Cryo RES (16.5% at level 1, 30% at level 10, for 6s), and the active character regains HP every 1.5s based on her Max HP while gaining interruption resistance.
  • Dirge of the Fandyr gives her 25 Lead Vocal and 10 Chorus stacks on each Skill. The active character (Lead Vocal) and off-field teammates (Chorus) consume them on Hydro or Cryo hits for extra flat DMG: every 1,000 Max HP above 40,000 adds 140 DMG (up to 3,500). When a Wandering Vortex is present, the bonus applies to Stellar Swirl DMG instead, at 260 per 1,000 HP (up to 6,500). Both caps are reached at 65,000 HP.
  • The Last Djeguako Songstress: during Song of Ages Past, Stellar Swirl creates Wandering Vortexes, which lower nearby enemies' Anemo RES by 35% for 6s and extend Radiance: Stellar Swirl by 4s.
  • Koda: Sink With Thee (Burst, 60 Energy) is an HP-scaling AoE nuke that hits harder during Song of Ages Past. It is optional in most teams.

Rotation

  1. E at the start of the rotation (Skill duration equals cooldown, so the uptime is permanent).
  2. Q only if you have spare Energy or need the damage.
  3. Swap to your DPS and come back when the Skill is ready again.

Build as much HP as you can: her healing, her flat DMG bonus and her signature weapon all scale with Max HP.

Strengths

  • Permanent healing, interruption resistance and Hydro/Cryo RES shred from a single button
  • Everything important works at C0, and her signature is a luxury
  • Fits two archetypes: Freeze and Stellar Swirl
  • Very simple to build: HP, HP, HP

Weaknesses

  • Low personal damage outside her Burst
  • Her RES shred only helps Hydro, Cryo and (in Stellar Swirl) Anemo damage
  • Wandering Vortexes change how Stellar Swirl behaves, which some rotations need to adapt to

Notable dupes · Constellation

C1
Solid upgrade

Each heal gives the party ATK equal to 0.8% of her Max HP for 5s.

C2
Big upgrade

+50% Hydro/Cryo CRIT DMG for the active character (or +60% Stellar Swirl CRIT DMG with a Wandering Vortex) and 9s more Song of Ages Past: the best stopping point.

C6
Big upgrade

Extends the C2 buff to the whole party, adds +60% Hydro/Cryo DMG and a 25% Stellar Swirl DMG elevation.

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