Vodyanitsa is lining up as a Hydro support in Genshin Impact 7.1, and her matching Catalyst has surfaced in early testing. It leans on her HP pool, boosts healing, and passes an attack bonus to whoever is fighting on the field. The numbers below reflect leaked beta values, so treat them as provisional until the weapon is finalized.
Quick answer: The weapon is a five-star Catalyst with 542 Base ATK and 66.2% HP as its secondary stat. Its passive raises the wielder’s Healing Bonus by 8%, stacks Max HP through healing, and converts a share of that HP into ATK for the active character. Frozen and Stellar Swirl reactions amplify those bonuses by an extra 75%.
Vodyanitsa signature weapon stats
The Catalyst carries a low Base ATK, which is expected for an HP-focused support unit. The 66.2% HP substat does most of the heavy lifting, feeding directly into both her survivability and the effects that scale off her total health.
| Property | Value |
|---|---|
| Weapon type | Catalyst |
| Base ATK | 542 |
| Secondary stat | HP 66.2% |
Because Vodyanitsa scales with HP rather than ATK, the modest Base ATK is not a drawback for her. The high HP substat is the point.
How the passive works
The passive layers a healing buff on top of an HP-to-ATK conversion. The healing part is always on, while the ATK sharing builds up as the wielder keeps healing the party. Everything can trigger from the bench, so Vodyanitsa does not need to be on the field to deliver the buff.
| Effect | Detail |
|---|---|
| Healing Bonus | Wielder’s Healing Bonus increases by 8%. |
| Song of the Water Nymph (on heal) | Healing a party member grants one stack. Wielder’s Max HP increases by 5%. |
| ATK sharing | For every 1,000 Max HP above 40,000, the active character’s ATK increases by 0.25%, up to 5%. |
| Stack rules | Each stack lasts 8 seconds, up to 3 stacks. Every stack’s duration is timed on its own. |
| Off-field | All effects trigger even while the wielder is off the field. |
The Max HP boost and the ATK share are linked. As Vodyanitsa climbs past 40,000 Max HP through her stacks and gear, more of that pool converts into an attack bonus for the on-field damage dealer, capped at 5%.
Frozen and Stellar Swirl boost the bonuses
The passive has a second gear that rewards reaction-based teams. When a nearby party member triggers a Frozen or Stellar Swirl reaction, the currently active Song of the Water Nymph stacks upgrade into Song of the Water Nymph’s Refrain.
Refrain increases both the Max HP bonus and the ATK bonus by an additional 75%. Any stacks that become active within the next five seconds after the reaction also convert. This makes the Catalyst noticeably stronger in Freeze compositions and in the new Stellar Swirl teams she is expected to support.
Who the weapon fits
The weapon is built around Vodyanitsa’s own kit, where healing feeds the stacks and her HP pool drives the ATK share. It pairs naturally with Stellar Swirl and Cryo-focused teams thanks to the Frozen and Stellar Swirl trigger, and it remains usable outside those setups because the base healing and HP bonuses always apply.
Note: The ATK-sharing portion favors on-field carries that scale with ATK. Teammates whose damage scales with HP will get less mileage out of that specific buff, though they still benefit from the healing and interruption support Vodyanitsa provides.
What is still unconfirmed
The ascension materials needed to level the Catalyst have not appeared yet, so there is no farming route to plan around at this stage. The stat values and passive wording can also shift during beta testing before the version 7.1 release. Anyone planning to pull should wait for the official Special Program to confirm the final kit and banner timing.
