King Crab

 

Name: King Crab
Large beast (aquatic), unaligned 

Challenge: 4 (1,100 XP)
Role: Anchor / Grappler / Area Control

Armor Class 15 (natural armor)
Hit Points 95 (10d10 + 40)
Speed 30 ft., swim 30 ft. 

STR	DEX	CON	INT	WIS	CHA
19 (+4)	11 (+0)	18 (+4)	2 (–4)	12 (+1)	5 (–3)

Saving Throws Str +7, Con +7
Skills Perception +4, Athletics +7
Senses blindsight 30 ft., passive Perception 14
Languages -

Traits

Amphibious. The crab can breathe air and water.

Siege Claws. The crab deals double damage to objects and structures.

Shell Guard (Reaction, 1/round).
When the crab is hit by a ranged attack, it reduces the damage by 1d10 + 4 as it angles its massive shell.

Mated Fury.
If the Alpha’s mate (the standard Monstrous Crab) is reduced to 0 HP, the Alpha enters a fury for 1 minute:

• Advantage on melee attack rolls
• +2 damage on all melee hits
• Cannot use Shell Guard during this time

Actions

Multiattack. The Alpha makes two Claw attacks.

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target.
Hit: 14 (2d8 + 4) bludgeoning damage, and the target is grappled (escape DC 15).

• While grappled, the target is restrained.
• The Alpha can grapple up to two creatures at a time.

Crushing Slam (Recharge 5–6).
The Alpha slams both claws down in a 10-foot radius.

• Creatures in the area must make a DC 15 Strength save
• Fail: 3d10 + 4 bludgeoning damage and knocked prone
• Success: Half damage, not knocked prone.

Bonus Actions

Drag Under.
A creature grappled by the Alpha is pulled up to 10 feet into water or difficult terrain.

Notes 

• This variant of King Crab of works in tandem with its mate, a monstrous 'Queen Crab.' King Crab is an aggressive crustacean that uses its claws and the ability to slam its heavy claws down to crush its target.
• King Crab's reinforced shell allows it to absorb the brunt of attacks, reducing the actual damage. In the event King Crab loses it mate, it will stop trying to defend itself, longing to perish, but not before in a rage trying to kill whoever caused its mate harm.
• Often kept as pets by Storm and giants. Woe be it to any adventurer, or chef, who disturbs a crab resting in storm giant's castle under the sea.