Gargantuan Fiend, Neutral Evil
Armor Class 25 (natural armor)
Hit Points 600 (30d20 + 250)
Speed 40 ft., Climb 40 ft., Fly 80 ft., Swim 30 ft., Burrow 20 ft.
STR
30 (+10)
DEX
16 (+3)
CON
30 (+10)
INT
18 (+4)
WIS
18 (+4)
CHA
24 (+7)
Saving Throws STR +19, DEX +12, CON +19, CHA +16
Skills Insight +8, Intimidation +7, Perception +9
Damage Resistances All
Senses Blindsight 60 ft., Darkvision 120 ft., Tremorsense, Truesight, Passive Perception 28
Languages All
Challenge 30 (155,000 XP)
Proficiency Bonus +9
Traits

Dimensional Disruption. Cerberus disrupts any attempt to warp or teleport away from him. 

Legendary Resistance (5/Day). If Cerberus fails a saving throw, it can choose to succeed instead.

Magic Resistance. Cerberus has advantage on saving throws against spells and other magical effects.

Siege Monster. Cerberus deals double damage to objects and structures.

Poison Miasma. During each turn Cerberus emits a cloud of poison from its mouth takes does 1d12 poison damage. Each turn the cloud spreads in a 10 foot radius up to 100 feet around Cerberus. After the tenth turn the poison damage increases by 1d12 and after each corresponding ten rounds the poison damage increases again.

 
Actions

Bite. Melee Weapon Attack: +17 to hit, reach 15 ft., one target. Hit: 21 (2d10 + 10) piercing damage plus 14 (4d6) necrotic damage.

Claw. Melee Weapon Attack: +17 to hit, reach 10 ft., one target. Hit: 17 (2d6 + 10) slashing damage. 

Tail. Melee Weapon Attack: +17 to hit, reach 20 ft., one target. Hit: 19 (2d8 + 10) bludgeoning damage. 

Frightful Presence. Each creature of Cerberus's choice that is within 120 feet of Cerberus and aware of it must succeed on a DC 22 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, 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 the dragon's Frightful Presence for the next 24 hours. 

Necrotic Breath (Recharge 5–6).Cerberus exhales necrotic gas in a 90‐foot cone. Each creature in that area must make a DC 25 Dexterity saving throw, taking 100 (28d6) necrotic damage on a failed save, or half as much damage on a successful one. Only one head can launch a breath attack per round. Each head can roll to recharge its breath attack.

Three in One Breath. Cerberus uses all three heads to exhale a powerful breath attack in a 120-foot cone and inflicts all targets with the spell Sleep, Fear and Blindness/Deafness. All targets make the saving throws for the respective spells. All heads can do their recharge for the Necrotic Breath but the Three in One attack can only be used if all the heads get back their breath attacks.

 
Legendary Actions

Legendary Actions

Cerberus can take 5 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. Cerberus regains spent legendary actions at the start of its turn.

Roar (Costs 2 Actions). Cerberus makes a scream that decreases the to hit of all targets within 60 ft. by 5.

Double Tail Attack (Costs 2 Actions). Cerberus makes 2 tail attacks. 

Pounce (Costs 2 Actions). Cerberus can jump on top of its target. Each creature within 15 feet must succeed a DC 25 Strength saving throw or take 17 (2d6 + 10) bludgeoning damage and be knocked prone. The pounced target is considered grappled and prone.

Shake (Costs 2 Actions). Cerberus shakes violently to remove any creatures from its body or dispel any magical effects from spells that afflict Cerberus.

Triple Bite Attack (Costs 3 Actions). Cerberus makes 3 Bite attacks.

 

Description

The odor of dead bodies and decay fill the cavern.

 

Lair and Lair Actions

Cerberus's Lair

Cerberus's lair is under a mountain that leads to the underdark. Caves with volcanic or geothermal activity are found near its location. Cerberus stays at the gate to the Nine Hells, stopping those that would enter and those that would leave. After the lair is discovered it will change to a new location so no one knows where it is.

Cerberus is a species of hellhound, the most powerful gains the title of Cerberus and will not die unless beaten by a stronger hellhound. This is done to make sure the strongest guardian possible is watching the gates to the Nine Hells. The only person allowed to leave without challenge is Asmodeus, ruler of the Nine Hells.

 

Lair Actions

On initiative count 20 (losing initiative ties), Cerberus takes a lair action to cause one of the following effects; Cerberus can’t use the same effect two rounds in a row:

  • Necrotic water erupts from a point on the ground Cerberus can see within 120 feet of it, creating a 25-foot-high, 10-foot-radius geyser. Each creature in the geyser’s area must make a DC 18 Dexterity saving throw, taking 32 (7d8) necrotic damage on a failed save, or half as much damage on a successful one.
  • A tremor shakes the lair in a 90-foot radius around Cerberus. Each creature other than Cerberus on the ground in that area must succeed on a DC 19 Dexterity saving throw or be knocked prone.
  • A Miasma Cloud appears in a 30-foot-radius sphere centered on a point Cerberus can see within 125 feet of it. The sphere spreads around corners, and its area is lightly obscured. It lasts until initiative count 20 on the next round. Each creature that starts its turn in the cloud must succeed on a DC 20 Constitution saving throw or be poisoned until the end of its turn. While poisoned in this way, a creature's movement speed is cut in half and if the saving throw was below 13 then they take 55 (15d6) poison damage on a failed save.

 

 

Regional Effects

The region containing Cerberus's lair is warped by abyssal magic, which creates one or more of the following effects:

  • Small earthquakes are common within 6 miles of Cerberus's lair.
  • Water sources within 1 mile of the lair are supernaturally warm and tainted by salt.
  • Creatures within 5 miles of the lair have disadvantage on death saving throws.

If Cerberus dies, these effects fade over the course of 1d10 days.

Previous Versions

Name Date Modified Views Adds Version Actions
8/9/2018 4:23:44 PM
999
8
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Coming Soon

Monster Tags: Demon

Habitat: MountainUnderdark

Ragebane

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