Massive Fiddler Crab

Large beast, unaligned

Armor Class 19 (natural armor)
Hit Points 126 (12d10 + 60)
Speed 30 ft., swim 30 ft.

STR	DEX	CON	INT	WIS	CHA
18 (+4)	14 (+2)	20 (+5)	2 (-4)	10 (+0)	3 (-2)

Saving Throws Dex +5, Con +8
Skills Perception +3, Stealth +5
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Senses blindsight 30 ft., passive Perception 13
Languages –
Challenge 8 (3,900 XP)

SPECIAL TRAITS

• Amphibious. The crab can breathe both air and water.
• Natural Camouflage. While it remains motionless, the crab has advantage on Dexterity (Stealth) checks.

ACTIONS

• Multiattack. The crab makes one claw slam attack. In addition, it makes one pincer attack, which it can replace with one crush attack. 
• Claw Slam. Melee Weapon Attack: +7 to hit, reach 5 ft., one target not grappled by the crab. Hit: 26 (4d10 + 4) bludgeoning damage.
• Pincer. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 17 (3d8 + 4) slashing damage. If the target is a Medium or smaller creature, it is grappled (escape DC 15). The crab has two pincers, each of which can grapple only one target.
• Crush. Melee Weapon Attack: +7 to hit, reach 5 ft., one target grappled by the crab. Hit: 20 (3d10 + 4) bludgeoning damage and 17 (3d8 + 4) slashing damage.