Vodyanitsa is a five-star Hydro Catalyst support built for Freeze and Stellar Swirl teams, where she heals, applies off-field Hydro, shreds resistance, and buffs the active character’s damage. Two upgrades push her support ceiling higher: her first Constellation, Waters in Full Splendor (C1), and her signature Catalyst, The Hymn of the Maelstrom (R1). Both aim at the same goal of feeding more ATK to an ATK-scaling carry, so the question is which one is worth your Primogems.
Quick answer: Pull for C1. It delivers a stronger team ATK buff than her signature weapon, so prioritize the Constellation and only equip The Hymn of the Maelstrom if you happen to win it while chasing Vesna’s weapon.

What Vodyanitsa’s C1 (Waters in Full Splendor) does
With C1, every activation of Song of Ages Past’s healing effect by Vodyanitsa grants all nearby party members an ATK increase based on her Max HP for 5 seconds. Since her build heavily prioritizes HP, that scaling becomes a substantial flat ATK boost for the character currently on the field.
Vodyanitsa is typically built toward roughly 65,000 Max HP to maximize her HP-scaling buffs, so the ATK gained from C1 is substantial in practice. That makes it a clean upgrade for ATK-scaling carries such as Vesna, and it keeps working off-field since her healing ticks while she is on standby.

In a full rotation, a C1 Vodyanitsa running Thrilling Tales of Dragon Slayers still fuels heavy Anemo and Hydro output, letting a Stellar Swirl team push into multi-million damage totals against tough targets. The Constellation is doing the heavy lifting there, not the weapon slot.

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Add to Google Preferences →What The Hymn of the Maelstrom (R1) does
The Hymn of the Maelstrom is Vodyanitsa’s signature Catalyst, available on the weapon banner shared with Vesna’s signature. It pairs a large HP substat with a healing-driven passive that turns her stacked HP into team ATK.
| Property | Value |
|---|---|
| Base ATK | 542 |
| Secondary stat | 66.2% HP |
| Passive | +4% Healing Bonus; Vatsamonga’s Vatic Vintage on heal |
Healing grants the wearer Vatsamonga’s Vatic Vintage: Max HP rises by 4%, while the active party member gains 0.4% ATK for each 1,000 Max HP Vodyanitsa has over 40,000, up to an 8% ATK maximum. It remains for 10 seconds and can accumulate three times. If a nearby ally causes Frozen or Stellar Swirl, both the Max HP and ATK bonuses increase by another 75% for 5 seconds; this activation still works while Vodyanitsa is off-field.

The weapon is a solid HP-and-buff Catalyst that suits her Freeze and Stellar Swirl duties, and a C0R1 setup still clears demanding content with high Swirl and Frozen bursts. The catch is the size of its team buff relative to cheaper alternatives.

C1 vs R1: Which to prioritize
C1 is the better investment. It provides a bigger ATK buff for your carry than the signature Catalyst does, and it stacks on top of whatever support weapon you already run. The Hymn of the Maelstrom, by comparison, only lands a few percent ahead of Thrilling Tales of Dragon Slayers, a three-star Catalyst that is easy to obtain and works as a free-to-play option.
Vesna’s signature weapon shares the same banner. If you pull for it and lose the 50/50, The Hymn of the Maelstrom is a perfectly good consolation to hand straight to Vodyanitsa.
Put simply, spend on the Constellation first and treat the weapon as a bonus rather than a target. C1 raises Vodyanitsa’s support value across every Freeze and Stellar Swirl team she joins, while a strong three-star Catalyst covers her weapon slot at almost no cost.






