Gargantuan Swarm of Gargantuan dragons, Any Evil Alignment
Armor Class 25 Natural armor
Hit Points 560 (560d20 + 23)
Speed
STR
10 (+0)
DEX
10 (+0)
CON
10 (+0)
INT
10 (+0)
WIS
10 (+0)
CHA
10 (+0)
Saving Throws STR +9, WIS +9
Damage Resistances Bludgeoning; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Damage Immunities Psychic; Bludgeoning, Piercing, and Slashing from Metal Weapons
Senses Passive Perception 5
Languages Common, Infernal
Challenge 30 (155,000 XP)
Proficiency Bonus +9
Traits

Special Trait Name. Swallow. Grapples anything large and under. While the victim is in the stomach it takes 81 acid damage each time it's the dragons turn.

Spellcasting. The Black Zeph is a 30 level spellcaster. Its spellcasting ability is 3d20+10. The Black Zeph has following Sorcerer spells prepared:
Cantrips 30th level: Meteor shower, Lightning strike
1st level: Acid splash, Dark portal

Actions

Action Name. Dark Breath: Recarge 5-6 turns. Hits for 60 damage and the victim must complete a 18 dexterity save throw.

Action Melee Attack. Tail smack: +10 (1d20) to hit, reach  15# ft target. Hit: 55(2d20 + 5) [Melee] damage. 

Action Ranged Attack. Dark fire ball: +10(1d20) to hit, range 30/300 ft., # target. Hit: 70 (3d20 + 10) [Pricing] damage.

Reactions

Tail swipe. On reaction the Black Zeph swipes his tail on the floor dealing 5 Melee damage and knocks you prone.(unless it's after a parry or if there more than 40 feet away)

Legendary Actions

The Black Zeph has one legendary acion

Golden fire (costs 3 turns) . The Black Zeph charges his gold fire and releases it for 100 damage if not blocked or parryed. If blocked or parryed it does 50 damage.

Description

There is only one Black Zeph on the planet. No one has lived to tell the tale. Will you be the first?

Lair and Lair Actions

The Black Zeph lives in the dark portal.

Lair Actions

On initiative count +5 (on initiative), the [Black Zeph] takes a lair action to cause one of the following effects; the [Black Zeph] can’t use the same effect two rounds in a row:

  • Roar. Roars so loud the roof crumbles in.
  • Shake. Can shake the floor which knocks them prone.

Regional Effects

The region containing a legendary [monster name]’s lair is [enter the effect description], which creates one or more of the following effects:

  • Crumble
  • Lava.

If the Black Zeph dies, these effects fade over the course of 2d20 days.

Monster Tags: YugolothDemon Lord

Habitat: Underdark

Thebossspacecow

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