Nixie

The Nixies (or Nixy, Nix, Näcken, Nicor, Nokk, or Nokken) are water spirits or sprites in Germanic folklore. Nix are generally male, while Nixie is usually a female river mermaid. They are viewed as a form of mer-people, and the Nix is linked by some to the Danube. They try to lure people into the water to drown.
The males can assume many different shapes, including that of a human, fish, and snake. The females bear the tail of a fish. When they are in human forms, they can be recognised by the wet hem of their clothes. The Nixes are portrayed as malicious in some stories but harmless and friendly in others.

Nixie CR: 1/4

Tiny fey, neutral evil

Armor Class: 15

Hit Points: 1 1d4-1

Speed: 10 ft , swim: 30 ft

STR

2 -4

DEX

20 +5

CON

8 -1

INT

10 +0

WIS

14 +2

CHA

15 +2

Skills: Perception +4, Stealth +7.

Senses: passive Perception 10.

Languages: Sylvan

Challenge Rating: 1/4

The nixie's innate spellcasting ability is Charisma (spell save DC 12). It can innately cast the following spells, as long as it is in contact with a body of freshwater.

At will: Druidcraft

1/day: Confusion, Dancing Lights, Detect Thoughts, Dispel Magic, Phantasmal Force, Polymorph, Sleep.

Magic Resistance: The Nixie has advantage on saving throws against spells and other magical effects.

Actions

Superior Invisibility: The nixie magically turns invisible, until it's concentration end (as if concentrating on a spell). Any equipment the nixie wears or carries is invisible with it.
Charming: When the nixie is in contact with a body of freshwater it gets a +6 to Charisma DC rolls. It sounds like a young child in distress or utters a song that attracts victims to it's watery abode.
Sticky Polymorph: when the nixie casts the polymorph spell to touch, grab or get a creature to mount it (in a mount form) said creature can only get itself unattached by a Strength DC 15. If failed the creature is dragged underwater and starts following the rules for drowning.

Nixies are water spirits in Germanic folk-lore and responsible for drownings.

Suggested Environments

Generally found in freshwater bodies, usually rivers, ponds and lakes.

Basic Information

Biological Traits

They can breathe in water or air, and many have the tails of fish or other such features. They are usually small, and slightly built.

Additional Information

Geographic Origin and Distribution

They are spread over the Germanic lands and most people are wary of hearing or seeing one when on, in or near bodies of water.