Gargantuan Fiend (Demon), Chaotic Evil
Armor Class 20 Natural Armor
Hit Points 475 (30d20 + 187)
Speed 60 ft., Walk 60 ft.
STR
30 (+10)
DEX
18 (+4)
CON
30 (+10)
INT
15 (+2)
WIS
24 (+7)
CHA
30 (+10)
Saving Throws STR +19, CON +19, CHA +19
Skills Intimidation +20
Damage Vulnerabilities Cold
Damage Resistances Acid, Force, Lightning, Psychic, Radiant, Thunder
Damage Immunities Fire, Necrotic, Poison; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Senses Blindsight, Darkvision, Truesight, Passive Perception 19
Languages All
Challenge 30 (155,000 XP)
Proficiency Bonus +9
Traits

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

Legendary Resistance (3/Day). If Algoth fails a saving throw, he can choose to succeed instead.

Magical Power (3/day). If Algoth doesn't know a spell and he has a slot of the level he can choose to cast it.

Spellcasting. Algoth is a 20-level spellcaster. Its spellcasting ability is Charisma (spell save DC 24, +15 to hit with spell attacks). Algoth has following spells prepared:
Cantrips (at will): [Fire Bolt], [Hellfire Grasp](Shocking Grasp but fire damage] 
1st level (8 slots): [Hellish Rebuke], [Inflict Wounds], [Arms of Hadar], [Burning Hands]

2nd level (7 slots):[Scorching Ray], [Darkness], [Flame Blade], [Shadow Blade], [Aganazzars Scorcher]

3rd level(6 slots):[Counterspell], [Dispel Magic], [Fireball], [Vampiric Touch], [Phantom Steed]

4th level (5 slots): [Wall of Fire], [Summon Greater Demon],

5th level (4 slots): [Immolation], [Enervation], [Negative Energy Flood]

6th level (3 slots): [Disintegrate], [Investiture of Flame], [Summon Fiend]

7th level (3 slots): [Power Word Pain], [Finger of Death], [Crown of Darkness](Crown of Stars but Necrotic)

8th level (3 slots): [Incendiary Cloud], [Maddening Darkness], [Dominate Monster]

9th level (2 slots): [Power Word Kill], [Invulnerability], [Meteor Swarm]

Wrath of the Demon King  (Recharges after a Short or Long Rest). 

If Algoth would be reduced to 0 hit points, his current hit point total instead resets to 500 hit points, and he regains any expended uses of Legendary Resistance. Additionally, Algoth can now use the options in the "Mythic Actions" section for 1 hour. Award a party an additional 155,000 XP (310,000 XP total) for defeating Algoth after his Wrath of the Demon King activates.

 

Actions

Multiattack. He can make three Lazarus attacks or three Phantom Song Attacks.

Lazarus. Melee Weapon Attack: +16 to hit, reach 30 ft., 1 target. Hit: 5d6 + 13 [Slashing] damage plus 4d6+10 fire damage.

Phantom Song. RangedWeapon Attack: +13 to hit, range 320/600 ft. Hit: 3d6 + 7 [Piercing] damage plus 3d6+10 necrotic damage.

 

 

Bonus Actions

He can cast any spell he knows as a bonus action.

Reactions

Reaction Name. Enter the description for your action.

Legendary Actions

Attack of the Demon King (Costs 1 Actions). He makes a Lazarus or Phantom Song attack

Come my Minions (Costs 2 Actions). He summons a demon of challenge rating 10 or lower to fight for him.

 

Mythic Actions

Hurl through the Abyss (Costs 2 Actions). He grabs you and throws you into the abyss you roll a d4 thats how many layers you go through each layer you take 3d10 necrotic damage.

Death Explosion (Costs 2 Actions). He stares at a location making a explosion of necrotic damage roll a dexterity saving throw take 3d10 fire damage plus 3d10 necrotic damage on a fail half as much on a success.

 

Description

The King of all demons Algoth. He is a fire and darkness combined to create a form a destruction stronger than any other demon.

Lair and Lair Actions

 

Lair Actions

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

  • He casts Immolation
  • He cast Dominate Monster or Dominate Person.
  • He casts Mirror Image

Regional Effects

The region containing the legendary Algoth's lair is warped and destroyed be his powerful magic and presence, which creates one or more of the following effects:

  • Every minute while in his lair you must make a DC 12 CON save or take 1d4 fire damage and 1d4 Necrotic Damage.
  • Darkness his lair is surrounded by darkness magical but darkvision can see through it as if it is dim light.

If Algoth dies, these effects fade over the course of 3d8 days.

EldarionUnderhill

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