Gargantuan Monstrosity, Chaotic Evil
Armor Class 28 natural
Hit Points 2012 (101d20)
Speed 80 ft., Walk 40 ft.
STR
30 (+10)
DEX
28 (+9)
CON
22 (+6)
INT
20 (+5)
WIS
16 (+3)
CHA
14 (+2)
Damage Vulnerabilities Lightning, Radiant
Damage Resistances Cold, Necrotic
Damage Immunities Piercing, Poison, Psychic
Condition Immunities Exhaustion, Frightened, Paralyzed
Senses Blindsight, Darkvision 120 ft., Truesight 120 ft., Passive Perception 35
Languages Common, Deep Speech, Draconic, Undercommon Common, Undercommon, Deep speech, Draconic
Challenge 30 (155,000 XP)
Proficiency Bonus +9
Actions

(5 actions per turn)

Slash. Melee Weapon Attack: uses the sharp claws and deals 4d10 slashing damage

Breath Weapon (1 per 4 turns). when used the Cerebrax will expel a 60 ft. cone of fine in one direction and anything within in that cone will take 26d6 fire damage.

Tail Attack. Once per turn Cerebrax may make one tail attack against an enemy within a 30 ft. radius and if he succeeds the enemy will be launched 30 ft. back and take 1d20 damage and an extra 1d4 damage for every obstacle hit when launched

Bite. Cerebrax bites a character within a 10 ft. of him and if he succeeds he deals 3d10 half as much on a failed and then if he does succeed then the targeted player needs to make a DC16 dexterity save to not be swallowed.

Tentacle grapple. you can grapple onto a player and they have to make a strength saving throw with a DC19 they take 2d10 bludgeoning and you can choose to throw them causing an extra 2d6 bludgeoning damage or you can use it to turn it into a bite attack where they have disadvantage on the save.

Bonus Actions

Opportunity Attack - Allows Cerebrax to use an opportunity attack

Intense Intimidation - Every player within 100 ft. has to make a charisma saving throw with a DC18 if they fail they are frightened for 1 turn

Legendary Actions

(3 legendary attacks)

Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 ft. of the dragon must succeed on a DC 25 Dexterity saving throw or take 17 (2d6 + 10) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.

Improvised Earthquake. The enemy stomps of slams the ground with a weapon. Everyone within 60 ft. must make a DC17 Dex saving throw or be knocked prone.

Acid blood. Whenever hit with a melee attack the creature can expend 1 legendary action point to fling the blood with a +5 to hit, on a hit deals, 5d6 acid damage

Legendary Resistance - When Cerebrax fails a saving throw he can succeed

Mythic Actions

Transformation(Uses 1 Action) - Cerebrax transitions from phase one of the battle to phase two

 

Description

Cerebrax was a monster created hundreds of years ago by scientists who were trying to recreate the dragons to use as their own, while doing so they created Cerebrax who was far more intelligent than expected. He was strong enough to destroy buildings in a single swipe and he has fire hotter than lava, Cerebrax only acted weak to fool everyone and give him enough time to escape. By the time the scientists realized the strength of Cerebrax it was too late his plan had been formulated and he managed to escape from the facility undetected and escaped into the Underdark where it would continue to dwell for hundreds of years until it drags its way up and bursts forth continuing on a rampage all throughout the world. (This monster is technically CR 40 but i could only put it in as CR 30)

Lair and Lair Actions

Enter a description of your monster's lair here.

Lair Actions

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

  • Enter a description for a lair action.
  • Enter a description for a lair action.

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:

  • Enter a regional effect description.
  • Enter a regional effect description.

If the [monster name] dies, these effects fade over the course of #d# days.

Gamejumper213

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