Crustachnids are large spider-like crabs, dwelling in ocean grottos and coastal caves. They wait for unsuspecting prey to wander into their den, before using their long hairy legs and noxious stinger to make them their next meal.
Large Monstrosity, Unaligned
Armor Class 17
Hit Points 93 (11d10+33)
Speed 30 ft., Climb 30 ft.
Initiative +3 (13)
STR 20 (+5) (+5)
DEX 10 (+0) (+3)
CON 16 (+3) (+3)
INT 2 (-4) (-4)
WIS 12 (+1) (+1)
CHA 3 (-4) (-4)
Resistances Fire
Senses Blindsight 30 ft.; Passive Perception 11
Languages –
Challenge 5 (2,300 XP), Proficiency Bonus +3
Amphibious. The crustachnid can breathe air and water.
Actions
Multiattack. The crustachnid makes two Claw attacks and uses Noxious Stinger.
Claw. Melee Attack Roll: +8, reach 10 ft. Hit: 10 (1d10 + 5) Bludgeoning damage. If the target is a Large or smaller creature, it has the Grappled condition (escape DC 16) from one of two claws.
Noxious Stinger. Constitution Saving Throw: DC 14, one creature Grappled by the crustachnid. Failure: 10 (4d4) Poison damage, and the target has the Poisoned condition, repeating the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically. While Poisoned, the target takes 5 (2d4) Poison damage at the start of each of its turns.
Credit: Inti Navia and Ivo Hoying

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