Baalagog the Two Faced Wyrm

(a.k.a. The Death of the Sands, Glass's Wild Spirit, or The Whispering Snake)

Baalagog the Two Faced Wrym is the Source Dragon of the island of Glass. Its two heads reflect the conjoined nature of the island's Source Crystals, one fire attuned and one earth attuned. The name "Baalagog" is actually a composite name of both heads of this single creature, one named Baala and one named Gog.

Physical Description

Body Features

Baalagog is a long, serpent like creature. Baala is crimson red, and an orange light glows from under his scales. Gog is sandy brown, with shards of glass poking out between her scales like the needles of a porcupine. Both heads look fairly similar, reptilian in nature, but ending in a hooked beak. Baala has smoldering red eyes, and smoke constantly billows from his nostrils, while Gog has eyes that are onyx black, and sand pours out of her mouth as she speaks.

Mental characteristics

Personal history

Baalagog emerged on the island in the centuries before the colonists first arrived, and spent hundreds of years alone, playfully bickering and fighting in a way that only siblings can understand.
In 200 TFA, the colonists arrived. Baalagog appeared before them and demanded that they either leave or worship the wyrm as their god. One of the colonists, in a moment of genus, asked which of the wyrms he should swear loyalty to first. What followed was a terrible argument during which Baalagog literally tore themselves apart. 52 years later, Baalagog regenerated, only to find the community had grown in size and had not in-fact started worshiping them. Furious, they attacked, only to be driven off by the villagers and a small army of mercenaries. They were then slain by a plucky group of adventurers with a can-do attitude and a thirst for casual murder.
This cycle has repeated several times in the intervening two centuries.

Gender Identity

Baala uses he/him pronouns and Gog uses she/her pronouns.

Failures & Embarrassments

For the last 200 years, Baalagog has been unable to rid their island of the colonists of Duston. Every time they have been struck down by an annoying band of plucky heroes or mercenaries. This repeated embarrassment has caused a fixation in Baalagog, driving them back to Duston every time they regenerate.

Intellectual Characteristics

Baalagog is split between their two personalities. Baala is a careful and coniving ambush predator, while Gog is excitable, short on patience, and prone to charging in head first. Both are compulsive and convincing liars, although they can rarely agree on a story so their deceptions tend to fall apart upon further inspection.

Morality & Philosophy

Baalagog consider themselves the rightful rules of Glass and will do anything it takes to maintain their claim.

Social

Speech

Baala speaks in a slow and methodical rasp, while Gog speaks in a haughty, self-righteous tone.

"This time sister, this time..."
"You say that every time, and yet we are no closer to our glorious silence, now are we?"
"Shut your sand-hole! I'm thinking."
"Well I'm thinking, too, brother dear. I'm thinking it's time we stop with your endless scheming and try something more conventional."
"What do you suggest?"
"The direct approach." 

Current Location

Glass

Species

Source Dragon

Circumstances of Birth

Born from the energy of Glass's Source Crystals.

Birthplace

Glass

Gender

Baala, the fire head, is male, while Gog, the earth head, is female.

Skin Tone/Pigmentation

Scales. Split between red and sandy brown.

Baalagog the Two Faced Wyrm CR: 16

Gargantuan source dragon, chaotic evil

Armor Class: 18

Hit Points: 247 (15d20 + 90) 15d20+90

Speed: 50 ft , burrow: 40 ft

STR

28 +9

DEX

7 -2

CON

22 +6

INT

1 -5

WIS

8 -1

CHA

18 +4

Saving Throws: CON +11, WIS +4

Skills: Deception +9, Intimidation +9, Persuasion +9

Damage Resistances: Fire, Bludgeoning from non-magical weapons.

Damage Immunities: Lightning

Condition Immunities: Stunned

Senses: Passive Perception 10.

Languages: Primordial, Draconic

Challenge Rating: 16

Innate Spellcasting. Baalagog's innate spellcasting ability is Charisma, and requires no material components to use magic (spell save DC 17).

1/day: Earthquake.

Tunneler. Baalagog can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake.
Legendary Resistance (3/Day). If Baalagog fails a saving throw, it can choose to succeed instead

Actions

Multiattack. Baalagog makes two bite attacks.
Bite. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 22 (3d8 + 9) piercing damage. If the target is a Large or smaller creature, it must succeed on a DC 19 Dexterity saving throw or be swallowed by Baalagog. A swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside Baalagog, and it takes 21 (6d6) acid damage at the start of each of the Baalagog's turns. If Baalagog takes 30 damage or more on a single turn from a creature inside it, they must succeed on a DC 21 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of Baalagog. If the Baalagog dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 20 feet of movement, exiting prone.
Frightful Presence. Each creature of the Baalagog's choice that is within 120 feet of them and aware of them must succeed on a DC 19 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 Baalagog's Frightful Presence for the next 24 hours
Fire Breath (Baala, Recharge 5–6). Baalagog exhales fire in a 60-foot cone. Each creature in that area must make a DC 21 Dexterity saving throw, taking 63 (16d6) fire damage on a failed save, or half as much damage on a successful one.
Sand Breath (Gog, Recharge 5–6). Baalagog lets loose a torrent of sand in a 90-­foot line that is 5 feet wide. Each creature in that line must make a DC 19 Dexterity saving throw, taking 66 (12d10) bludgeoning damage on a failed save, or half as much damage on a successful one. A creature who fails the save is pushed 60 ft backwards. 

Legendary Actions

Baalagog 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. Baalagog regains spent legendary actions at the start of their turn.
Detect. The dragon makes a Wisdom (Perception) check.
Dive. Baalagog tunnels under the ground and emerges 30ft from its current space.
Bite (Costs 2 Actions). Baalagog makes one bite attack.
Thrash (Costs 2 Actions). Baalagog thrashes their body, causing tremors in the sand. Each creature within 10 feet of the dragon must succeed on a DC 22 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. The dragon can then up move to half its move speed.