Quackthulhu

Gargantuan aberration, chaotic evil

Armor Class

18 (natural armor)

Hit Points

429 (26d20 + 156)

Speed

50 ft., swim 100 ft.

STR

24 (+7)

DEX

14 (+2)

CON

22 (+6)

INT

5 (-3)

WIS

15 (+2)

CHA

20 (+5)

Damage Immunities

necrotic, poison

Damage Resistances

bludgeoning, piercing, and slashing from nonmagical attacks

Senses

blindsight 120 ft., darkvision 120 ft., passive Perception 15

Saving Throws

Str +12, Con +11, Wis +7

Skills

Intimidation +9, Perception +5

Languages

--

Challenge

21 (33,000 XP)

Legendary Resistance (3/day). If Quackthulhu fails a saving throw, it can choose to succeed instead.

Actions

Multiattack. Quackthulhu makes 4 attacks, one of which can be an Infect attack.

Tentacle. Melee Weapon Attack, +11 to hit, reach 15 ft., one target. Hit: 20 (3d8 + 7) bludgeoning damage, and the target must succeed on a DC 15 Strength saving throw or become grappled. Quackthulhu has four tentacles.

Infect. Melee Weapon Attack, +11 to hit, reach 5 ft., one target who is grappled. Hit: 17 (3d6 + 7) piercing damage, and the target must succeed on a DC 15 Constitution saving throw or become poisoned for one hour. While poisoned in this way, the target is considered infected.

Soul-wrenching Quack (Recharge 6). All creatures within 60 ft. of Quackthulhu must succeed on a DC 16 Wisdom saving throw or become paralyzed until the end of Quackthulhu’s next turn.

Legendary Actions

Quackthulhu can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature’s turn. Quackthulhu regains spent legendary actions at the start of its turn.

Tentacle. Quackthulhu makes a tentacle attack.

Ground Slam. All creatures within 5 ft. of Quackthulhu must succeed on a DC 14 Strength saving throw or be pushed 10 ft. away.

Command Infected. A creature within 60 ft. of Quackthulhu who is currently infected moves up to half its speed and makes a single weapon attack against a creature of Quackthulhu’s choice.

gargantuan
aberration
cr21
homebrew