Deep Reservoir Thing
Large aberration, chaotic evil
Behind the dam the water lies still and black over drowned fields, and something down there learned to love the weight of it. Divers who go too deep come up changed, or they do not come up, and the thing wears their lanterns like lures.
Armor Class 15 (pressure-thickened hide)
Hit Points 168 (16d10 + 80)
Speed 20 ft., swim 40 ft.
- STR
- 19 (+4)
- DEX
- 12 (+1)
- CON
- 20 (+5)
- INT
- 13 (+1)
- WIS
- 15 (+2)
- CHA
- 10 (+0)
Saving Throws Con +8, Wis +5
Skills Perception +5
Damage Resistances cold, psychic
Senses darkvision 120 ft., passive Perception 15
Languages understands Deep Speech but cannot speak
Challenge 7
Traits
Pressure Aura. The water and air within 20 feet of the thing sits heavy and wrong. Each creature in that aura has disadvantage on Constitution saving throws, and it cannot hold its breath longer than 1 minute while inside the aura.
Amphibious. The thing can breathe air and water.
Actions
Multiattack. The thing makes two constricting tentacle attacks.
Constricting Tentacle. Melee Weapon Attack: +7 to hit, reach 15 ft., one Large or smaller creature. Hit: 23 (3d12 + 4) bludgeoning damage, and the target is grappled (escape DC 15). Until the grapple ends the target is restrained.
