Sources
CR
Type
Size
Alignment
Movement

Naiad

Medium Fey, Chaotic Neutral

Armor Class 15 (natural armor)
Hit Points 31 (7d8)
Speed 30 ft., swim 30 ft.
STR
10
+0
DEX
16
+3
CON
11
+0
INT
15
+2
WIS
10
+0
CHA
18
+4
Skills Persuasion +6, Sleight of Hand +5
Damage Resistances psychic
Damage Immunities poison
Condition Immunities Charmed, Frightened, Poisoned
Senses passive Perception 10
Languages Common, Sylvan
Challenge 2 (450 XP)

Traits

Amphibious. The naiad can breathe air and water.

Invisible in Water. The naiad is invisible while fully immersed in water.

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

Spellcasting

Innate Spellcasting. The naiad's spellcasting ability is Charisma (spell save DC 14). It can innately cast the following spells, requiring no material components:

At will: minor illusion

1/day each: fly, hypnotic pattern

3/day: phantasmal force

Actions

Multiattack. The naiad makes two psychic touch attacks.

Psychic Touch. Melee Spell Attack: +6 to hit, reach 5 ft., one target. Hit:9 (1d10 + 4) psychic damage.