Nix
Nix, The Gelid Dweller, is a boss in VV: Ultimatum with a documented respawn timer of 7 minutes 30 seconds and the Golem charm as its documented drop.
Nix carries the title 'The Gelid Dweller' - a name that signals a cold-themed lurker, though community documentation has not yet filled in its story or appearance.
Two concrete facts are documented. First, Nix runs on a fixed respawn timer of 7 minutes 30 seconds, which makes it one of the faster-cycling repeatable bosses in the game - short enough to camp between other activities. Second, its documented direct drop is the Golem charm, tying it into the game's spirit charm progression.
Everything else about the encounter is currently undocumented: the community documentation does not yet describe its location, level range, moveset, phases or any additional rewards beyond the Golem charm. Players hunting the Golem charm should expect to rely on the 7 minute 30 second respawn rhythm rather than a scheduled spawn window, since Nix is not part of the game's hourly boss rotation.
This page will be expanded as the community fills in the fight's details and the values here are verified in-game.

Details
| Title | The Gelid Dweller |
| Spawn timer | Respawn timer of 7 minutes 30 seconds |
| Location | Not documented in current community documentation |
| Notable drops | Golem (charm) |
FAQ
How often does Nix respawn?
Nix has a documented respawn timer of 7 minutes 30 seconds. It is not part of the hourly world boss rotation.
What does Nix drop?
The Golem charm is its only documented drop so far.
Where is Nix located?
Its location is not listed in current community documentation.