Nixie

Small fey, neutral evil
Armor Class 15
Hit Points 26 (4d6 + 12)
Speed 10 ft., swim 40 ft.

STR	DEX	CON	INT	WIS	CHA
11 (+0)	20 (+5)	17 (+3)	16 (+3)	17 (+3)	22 (+6)

Skills Perception +5, Stealth +7
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks not made with cold-iron weapons
Senses passive Perception 15
Languages Common, Elvish, Sylvan
Challenge 3 (450 XP)

Innate Spellcasting. A nixie’s innate spellcasting ability is Charisma (spell save DC 16). It can innately cast the following spells, requiring no material components:
At will: animal friendship
3/day: charm person
1/day: water breathing

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

Actions

Shortsword. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 9 (1d6 + 5) slashing damage.

Light Crossbow. Ranged Weapon Attack: +7 to hit, range 80/320 ft., one target. Hit: 10 (1d8 + 5) piercing damage.