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Surf Lurker

Medium monstrosity, unaligned

Armor Class 16 (natural armor)
Hit Points 99 (18d8 + 18)
Speed 30 ft., fly 30 ft., swim 30 ft.

12 (+1) 15 (+2) 12 (+1) 3 (–4) 16 (+3) 3 (–4)

Skills Stealth +6
Senses passive Perception 13
Challenge 4 (1,100 XP)


  • Camouflage. Surf lurkers gain advantage on all Dexterity (Stealth) checks while in water.


  • Multiattack. The surf lurker makes six Tentacle attacks, uses Reel, and makes one Bite attack.
  • Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 19 (4d8 + 1) damage plus 11 (2d10) poison damage. The lurker has advantage on targets grappled by one or more of its tentacles.
  • Tentacles. Melee Weapon Attack: +7 to hit, reach 50 ft., one creature. Hit: The target is grappled (escape DC 14). Until the grapple ends, the target is restrained and has disadvantage on Strength checks and Strength saving throws, and the creature can’t use the same tendril on another target. The lurker can automatically grapple a target with its remaining tentacles; each tentacle adds 1 to the target’s escape DC. The surf lurker has advantage on all bite attacks against targets grappled by its tentacles.
  • Drown. A lurker with a grappled target attempts to submerge and drown its target (see Suffocation rules).
  • Reel. The lurker pulls one grappled creature up to 25 feet closer to it.


Surf lurkers resemble medium-sized serpents with mottled blue-green scales that aid in camouflage. Their thin, membranous wings are normally kept closely folded against their bodies, but they unfurl them when they leap from hiding to surprise their prey. Their heads resemble predatory fish more than snakes, and sport stabbing fangs that secrete a toxic venom used to subdue smaller prey. While they normally hunt smaller fish or surface creatures that venture near the ocean, lurkers have no qualms about attacking larger victims such as sailors or unfortunate beachcombers.

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Tome of Horrors 2020, (C) 2020, Necromancer Games

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