Kellikilli

Large Elemental, Neutral

AC: 13

Initiative: +3 (13)

HP: 58 (9d10 + 9)

Speed: 0 ft., swim 60 ft.

STR
17 (+3)
DEX
16 (+3)
CON
13 (+1)
INT
11 (+0)
WIS
10 (+0)
CHA
10 (+0)

Resistances: fire; bludgeoning, piercing, slashing from nonmagical attacks

Immunities: poison

Condition Immunities: exhaustion; grappled; paralyzed; poisoned; restrained; prone; unconscious

Senses: blindsight 30 ft., Passive Perception 10

Languages: understands Aquan but doesn't speak

CR: 3 (XP 700; PB +2)

Habitat: Underdark, Urban

Invisible in Water.

Kellikilli is invisible while fully immersed in water.

Water Bound.

Kellikilli dies if it leaves the water to which it is bound or if that water is destroyed.

Actions

Constrict.

Melee Weapon Attack: +5 to hit, reach 10 ft., one creature. Hit: 13 (3d6 + 3) bludgeoning damage. If the target is Medium or smaller, it is grappled (escape DC 13) and pulled 5 feet toward Kellikilli. Until this grapple ends, the target is restrained, the water weird tries to drown it, and the water weird can't constrict another target.

Find this creature in the encounter builder

Kellikilli

Source: Phandelver and Below: The Shattered Obelisk, p. 121 - Licenses and attribution