Large Monstrosity, Unaligned
Armor Class 14 (natural armor)
Hit Points 76 (9d10 + 27)
Speed 30 ft., Swim 60 ft.
STR
18 (+4)
DEX
11 (+0)
CON
16 (+3)
INT
6 (-2)
WIS
10 (+0)
CHA
9 (-1)
Skills Perception +7
Condition Immunities Poisoned
Senses Darkvision 60 ft., Passive Perception 17
Languages Knows Common and Abyssal but can not speak
Challenge 4 (1,100 XP)
Proficiency Bonus +2
Traits

Amphibious. The Cetus Spawn can breathe air and water.

Charge. If the Cetus Spawn moves at least 10 feet straight toward a target and then hits it with a slam attack on the same turn, the target takes an extra 9 (2d8) piercing damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be pushed up to 10 feet away and knocked prone.

Shark Raving Mad. At the start of its turn, the Cetus Spawn can gain advantage on all melee weapon attack rolls it makes during that turn, but attack rolls against it have advantage until the start of its next turn.

Death Burst. The Cetus Spawn's bloated gas-filled body explodes when it drops to 0 hit points. Each creature within 10 feet of it must succeed on a DC 15 Constitution saving throw or take 10 (3d6) poison damage and become infected with a disease on a failed save. Creatures immune to the poisoned condition are immune to this disease.

Actions

Slam. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 17 (2d12 + 4) slashing damage.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage.

Description

Spawned by crossbreeding mortal races with Aboleth DNA, this massive walking fish beast stands at upwards to 10ft in height with slime coated pale skin and a distended stomach that bloats with poisonous gasses. All intelligence the creature once had it removed in place with a voracious instinct to consume and kill indiscriminately. 

It's body is long and massive with translucent spiked fins flowing down it's back. At the base of its fish-like tail the Cetus Spawn stands atop two massive hind legs with clawed feet that dig into the ground below it. It's upper body has both small fins for swimming with skinny vestigial arms hanging underneath limply grasping at it's prey. It's face ends in a large circular maw of teeth that can consume wayward travelers in an instant.

Reports of this creature suggest it takes the qualities of a human, sturgeon and lamprey eel and combine it into a rampaging fish-like T-Rex that can threaten adventures both on land and in the water.

Habitat: CoastalUnderwater

Kerushii

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