Kaiju, Xarakhan

Family: Kaiju

Gargantuan monstrosity, unaligned

Armor Class 21 (natural armor)
Hit Points 717 (35d20 + 350)
Speed 100 ft., fly 60 ft., swim 100 ft.

30 (+10) 12 (+1) 30 (+10) 4 (-3) 16 (+3) 8 (-1)

Saving Throws Str +18, Dex +9, Int +5
Damage Immunities acid, bludgeoning, piercing and slashing damage from nonmagical attacks, cold, lightning, poison
Condition Immunities charmed, frightened, paralyzed, petrified, poisoned
Damage Resistances necrotic, psychic
Senses passive Perception 13, truesight 120 ft.
Challenge 28 (120,000 XP)


  • Legendary Resistance (3/day). If Xarakhan fails a saving throw, it can choose to succeed instead.
  • Magic Resistance. Xarakhan has advantage on saving throws against spells and other magical effects.
  • Siege Monster. Xarakhan deals double damage to objects and structures.


  • Multiattack. Xarakhan uses its Frightful Presence and make one Bite attack and two Tentacle attacks. It can use its Absorb instead of its Bite.
  • Bite. Melee Weapon Attack: +18 to hit, reach 10 ft., one target. Hit: 36 (4d12 + 10) piercing damage.
  • Tentacle. Melee Weapon Attack: +18 to hit, reach 20 ft., one target. Hit: 28 (4d8 + 10) slashing damage plus 11 (2d10) acid damage. If the target is a creature, it is grappled (escape DC 20). Until the grapple ends, the target is restrained, and Xarakhan can’t use that tentacle attack against another target.
  • Absorb. Xarakhan makes one Bite attack against a Large or smaller target it is grappling. If the attack hits, the target takes the Bite’s damage, the target is absorbed, and the grapple ends. While absorbed, the creature is blinded and restrained, it has total cover against attacks and other effects outside Xarakhan, and it takes 56 (16d6) acid damage at the start of each of Xarakhan’s turns. If Xarakhan takes 50 damage or more on a single turn from a creature inside it, Xarakhan must succeed on a DC 20 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of Xarakhan. If Xarakhan dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 30 feet of movement, exiting prone.
  • Change Shape. Xarakhan can change its shape with a standard action, transforming from a walking jellyfish-like creature with a speed of 100 ft./swim 100 ft. into a roughly saucer-shaped flying creature with a speed of 0 ft./fly 60 ft. While flying, Xarakhan cannot use its bite or tentacle attacks, except against grappled targets.
  • Corrosive Slime (recharge 5-6). Xarakhan exhales a burst of corrosive slime in a 90-foot line that is 10 feet wide. Each creature in that line must make a DC 22 Dexterity saving throw, taking 67 (15d8) acid damage on a failed save, or half as much damage on a successful one. Creatures who failed their save are also drenched in slime that continues to inflict damage — 36 (8d8) acid damage at the end of the target’s next turn and 18 (4d4) acid damage on the next. Creatures who take ongoing damage may make DC 20 Constitution saving throws at the end of each turn they take damage, with a success reducing damage by half and ending any ongoing damage.
  • Frightful Presence. Each creature of Xarakhan’s choosing within 120 feet of it and aware of it must succeed on a DC 17 Wisdom saving throw or become frightened for one minute. A creature can repeat the saving throw at the end of each of its turns, with disadvantage if Xarakhan is within line of sight, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to Xarakhan’s Frightful Presence for the next 24 hours.


Xarakhan can take three 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. Xarakhan regains spent legendary actions at the start of its turn.

  • Attack. Xarakhan makes one Bite, Absorb, or Tentacle attack.
  • Move. Xarakhan moves up to half its speed.
  • Frightful Assault (costs 2 actions). Xarakhan makes one Frightful Presence action and one Bite or Tentacle attack.


About Kaiju: Legends hold that countless ages ago, when the Old Ones and other dread beings engaged in the Primordial Wars, terrifying monsters of enormous size, strength, and power also contended. These creatures were not slain or banished at the end of the wars, but only returned to their slumber under the seas, beneath mountains, or buried in the earth itself. On occasion, these kaiju, awakened by natural disasters, disturbed by greedy or unfortunate humans, or driven by unknowable instincts, stir once more and emerge to wreak havoc and destroy.

A great mass of water erupts from the sea, sending drenching torrents across the land as the horror emerges. It appears to be a great bell-shaped mass of jelly and slime, propelled along on countless coiling tentacles as it moves onto the land. Across its surface are numerous eye-like organs. It lashes out with its slime-coated tendrils and unleashes a torrent of jellied slime from its leech-like mouth. Thankfully, it slumbers in the Abyss, for its very presence draws hostile creatures to its vicinity. These include natural creatures such as sharks, giant squid, and carnivorous fish of all types, but the kaiju’s proximity can also attract stranger and more dangerous creatures, including sea serpents, aquatic demons, and even intelligent sea-dwellers such as sahuagin and merrow. All such creatures are highly aggressive and hostile, driven to near-madness by the nearness of this terrifying force of destruction.

Section 15: Copyright Notice

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