Rusalka
Medium undead, chaotic evil
Armor Class
14 (natural armor)
Hit Points
88 (16d8 + 16)
Speed
30 ft., swim 40 ft.
STR
17 (+3)
DEX
13 (+1)
CON
12 (+1)
INT
11 (+0)
WIS
15 (+2)
CHA
18 (+4)
Damage Immunities
necrotic, poison; piercing and slashing damage from nonmagical weapons
Condition Immunities
charmed, frightened, paralyzed, poisoned
Senses
darkvision 60 ft., passive Perception 12
Languages
Common
Challenge
6 (2300 XP)
Withered Tresses. If a rusalka is kept out of water for 24 consecutive hours, its hair and body dry into desiccated swamp weeds and the creature is utterly destroyed.
Innate Spellcasting. The rusalka’s innate casting ability is Charisma (spell save DC 15). She can innately cast the following spells, requiring no material components:
At will: control water, suggestion, tongues, water walk (can be ended freely at will)
1/day: dominate person
Watery Camouflage. In dim light or darkness, a rusalka that’s underwater is invisible.
Actions
Breathless Kiss. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: the target is grappled (escape DC 13) and the rusalka draws all the air from the target’s lungs with a kiss. If the rusalka has movement remaining, she drags the grappled creature into deep water, where it begins suffocating.
Drowning Hair (1/Day). The rusalka’s long hair tangles around a creature the rusalka has grappled. The creature takes 33 (6d10) necrotic damage, or half damage with a successful DC 15 Constitution saving throw. In addition, until it escapes the rusalka’s grapple, it is restrained and has disadvantage on Strength checks to break free of the grapple.