Gargantuan monstrosity (titan), chaotic neutral

Armor Class 22 (natural armor)
Hit Points 615 (30d20 + 300)
Speed 100 ft., swim 100 ft.

30 (+10) 21 (+5) 30 (+10) 3 (-4) 28 (+7) 26 (+9)

Damage Resistances acid, cold, lightning, necrotic, thunder; bludgeoning, piercing, and slashing from attacks by creatures smaller than Gargantuan size
Damage Immunities fire
Condition Immunities frightened, paralyzed, petrified
Skills Athletics +19, Perception +16
Senses darkvision 60 ft., passive Perception 26
Languages Aquan (can’t speak)
Challenge 29 (135,000 XP)


  • Amphibious. Mogaru breathes air and water.
  • Kaiju Sense. Mogaru knows the location of the closest Gargantuan monster.
  • Legendary Resistance (3/Day). If Mogaru fails a saving throw, it can choose to succeed instead.
  • Massive Size. Mogaru occupies a space of 120 feet by 120 feet instead of the space a Gargantuan creature would normally occupy. He cannot be grappled, restrained, stunned, knocked prone, or Shoved by creatures smaller than Gargantuan size.
  • Regeneration. Mogaru regains 30 hit points at the beginning of its turn if he has at least 1 hit point.
  • Siege Monster. Mogaru deals double damage to objects and structures.
  • Susceptible to Song. Mogaru is susceptible to song, provided it notices. A creature must succeed at three consecutive DC 20 Charisma (Performance) ability checks within 1,000 feet of Mogaru in order to get its attention. If it succeeds at all three ability checks, it can influence Mogaru is if with the spell suggestion. If Mogaru is engaged in battle, there is only a 20% chance each round that it notices the singing. Mogaru can only be influenced in this way once per day.


  • Multiattack. Mogaru makes one bite attack or one stomp attack and two tail attacks.
  • Bite. Melee Weapon Attack: +19 to hit, 60 ft. reach, all targets in a 10-foot cube. Hit: 75 (10d12 + 10) piercing damage.
  • Stomp. Melee Weapon Attack: +19 to hit, 60 ft. reach, all targets in a 10-foot-radius cylinder, 30 feet high. Hit: 42 (5d12 + 10) bludgeoning damage, and creatures struck must succeed on a DC 25 Dexterity saving throw or be knocked prone and restrained (escape DC 25) until Mogaru moves or makes another Stomp attack.
  • Tail. Melee Weapon Attack: +19 to hit, 120 ft. reach, all targets in a 10-foot cube or 20-foot line, 5 feet wide. Hit: 48 (7d10 + 10) bludgeoning damage.
  • Energy Bolts. Ranged Weapon Attack: +14 to hit, 120 ft./480 ft. range, four targets. Hit: 31 (7d8) fire damage plus 31 (7d8) force damage.
  • Breath Weapon (Recharge 5-6). Mogaru exhales energy either in a 60-foot cone or a 120-foot line that is 20 feet wide. Each creature in that affected area must make a DC 27 Dexterity saving throw, taking 45 (10d8) fire damage plus 45 (10d8) force damage on a failed save, or half as much damage on a successful one. Creatures reduced to 0 hit points by this breath weapon are disintegrated as per the disintegrate spell. A Gargantuan creature that is grappling or restraining Mogaru has disadvantage on its saving throw against his breath weapon.


  • Power Battery. When Mogaru takes (or would take, if he were not immune to it) acid, cold, fire, lightning, or thunder damage, he absorbs some of that energy converts it into greater power for his Energy Bolts and Breath Weapon. The next time he uses either ability within 1 minute, increase damage dice from d8s to d10s. If he would take damage more than once before discharging his stored energy, increase damage dice from d8s to d12s. He cannot use this ability with damage from his own abilities.


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

  • Absorb Energy. Mogaru can choose one of the types of damage it is resistant to (except bludgeoning, piercing, and slashing damage from non-magical attacks) and choose to instead be immune to it. This immunity lasts until the end of Mogaru’s next turn.
  • Frightening Aura. All creatures within 60 feet of Mogaru must succeed a DC 26 Wisdom saving throw or become frightened of Mogaru. A frightened creature can attempt a saving throw at the end of each of its turns to end the condition. Creatures successfully saving are immune to this ability for 1 hour.
  • Quick Breath. Mogaru can use its Breath Weapon, except it only deals 13 (3d8) fire and 13 (3d8) force damage.
  • Trample (Costs 2 Actions). Mogaru can move up to half its speed and make a single Stomp attack at any point during its movement.


Mogaru, known as the Final King to kaiju scholars, or simply as King Mogaru, is one of the most destructive of his kind.

Although not the most powerful kaiju (a sobering thought in and of itself ), Mogaru is certainly the most active of the known kaiju. Additionally, Mogaru seems to be as eager to rampage through the works of humanity as he is to attack and kill other kaiju, making him something of a mixed blessing to kaijuthreatened cities. While the prospect of an attack by Mogaru is the stuff of nightmares, the possibility of his intervention during a different kaiju attack is the stuff of hope, though the damage dealt to a city during its defense may be significant.

Mogaru appears as a towering dinosaur with twin tails, spines that glow red as he uses his breath weapon, and two powerful clawed forearms. Mogaru stands 140 feet high and weighs 20,000 tons and is nearly 300 feet long from nose to tail.

Unrivaled. King Mogaru dwells in the depths of a tropical jungle, sleeping silently at the bottom of an unusually deep lake until roused. Legends hold that Mogaru was born of the world itself, either formed from the spirits of countless plants and animals resulting from ages of hunting and predation by humanoids for food or sport or formed from the souls of the countless slain in an ancient apocalypse or war that devastated one of the first of the world’s empires. Regardless of the actual cause, the birth of Mogaru in these legends seems to be the same-soon after another kaiju that emerged from an erupting volcano, Mogaru rose to oppose the so-called Thrice-Headed Fiend in a vast battle that nearly slew that enemy while devastating an entire nation in the process. Mogaru is also rumored to have slain no fewer than a dozen other kaiju, including one who may have returned from the grave as the only undead kaiju in existence.

Sensitive to Song. Of particular note is the curious fact that Mogaru exhibits a particularly unique interest in song. Legends of skilled singers being able to save their cities with a single mournful paean to the kaiju, or of vengeful bards using their craft to waken the monster from his lair to send him on a rampage are common along coastal regions with a history of kaiju attacks, and in such regions renowned singers are well respected for this ability to influence one of the world’s most destructive creatures. Kaiju scholars suspect that song manages to penetrate Mogaru’s memories of some primeval event, but the reasons for the kaiju’s reaction to the song are its own.

Section 15: Copyright Notice

Asian Monsters (5E) © 2021, Legendary Games; Authors Miguel Colon, Jason Nelson, Andrew Ha, Aurélien Lainé, Dan Dillon, Ismael Alvarez, James-Levi Cooke, Robert J. Grady, Jeff Ibach, Matt Kimmel, and Thurston Hillman

This is not the complete section 15 entry - see the full license for this page