Gargantuan Dragon, Any Chaotic Alignment
Armor Class 23 (natural armor)
Hit Points 615 (30d20 + 300)
Speed 40 ft., Climb 40 ft., Fly 80 ft., Burrow 40 ft.
STR
30 (+10)
DEX
18 (+4)
CON
30 (+10)
INT
21 (+5)
WIS
19 (+4)
CHA
26 (+8)
Saving Throws DEX +11, CON +17, WIS +11, CHA +15
Skills Deception +16, Perception +20, Persuasion +16, Stealth +12
Damage Immunities Fire, Lightning
Condition Immunities Blinded, Deafened
Senses Blindsight 60 ft., Darkvision 120 ft., Passive Perception 26
Languages Common, Draconic
Challenge 24 (62,000 XP)
Proficiency Bonus +7
Traits

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

Night Flyer. Purple dragons due to their dark coloring can exploit that in the dark. Purple dragons have advantage on stealth checks in dim or dark light.

Tunneler. The dragon can burrow through solid rock at half its burrowing speed and leaves a 20-foot-diameter tunnel in its wake.

Flyby. The dragon doesn’t provoke opportunity attacks when it flies out of an enemy’s reach.

Siege Monster. The dragon deals double damage to objects and structures.

Arc Ressistance. The dragon is immune to effects that would blind or deafen it.

Plasma Wielder. Whenever the dragon deals lighting and damage to a creature in the same round the damage is added together and considered it's own damage type for how effective it is see below.

(-2 - 1 0)Vulnerable -1

(1 2) Neutral 0

(3) Resistance +1

(4) Immune +2

 

Actions

Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +17 to hit, reach 15 ft., one target. Hit: 21 (2d10 + 10) piercing damage plus 7 (2d6) fire damage and 11 (2d10) lighting 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 the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 23 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.

Plasma Breath (Recharge 4–6). The dragon exhales a blast of plasma and the dragon must make a choice of our of three options; Line, Cone, or Mote. If the dragon chooses line The dragon exhales it's plasma in a 120-­-foot line that is 10 feet wide. If it choose cone the dragon exhales the blast in a 90-foot cone. Finally if more was chosen The dragon exhales a flashing mote that travels to a point the dragon can see within 240 feet of itself, then blossoms into a 40-foot-radius sphere centered on that point. No matter the choice each creature in that area must make a DC 26 Dexterity saving throw, taking 49 (14d6) fire damage and 50 (9d10) lightning on a failed save, or half as much damage on a successful one. Additionally all creatures within 20--feet of this area including those within it all make a DC 23 Constitution saving throw to avoid being blinded 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.

Legendary Actions

The dragon 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. The dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) check.

Tail Attack. The dragon makes a tail attack.

Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 feet 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.

Description

Nocturnal Hunters. Purple dragons mostly feed on livestock, large wild animals, and any humanoid creatures foolish enough to settle near them. This behavior is fairly standard for a powerful creature like a dragon, however, an added element which makes purple dragons especially fearsome is their penchant for hunting at night. Using the color of their scales to their advantage, purple dragons are extremely difficult to see as they loom in the clouds above, preparing to strike at their prey down below.

 

Not so Deep Afterall. Many sages make the mistake of conflating purple dragons with deep dragons on account of the fact that their scales bear a similar appearance. This is only made more confusing due to the similar nesting habits of the two species. Purple dragons and deep dragons both burrow into the ground and make their homes in complex cave systems, however, deep dragons will typically burrow well into the Underdark, while purple dragons are still considered surface dwelling creatures. It is possible that the first deep dragons were indeed purple dragons that simply acclimated to life in the underdark, but both species are so rare that there can’t be any consensus on their possible relation.

 

Cunning Linguists. Although it is not known exactly how or why, it seems that all purple dragons are gifted with the unique ability to understand and be understood by any creature capable of speaking words aloud. This ancestral knowledge of all spoken language is passed down from parent to child biologically, meaning that every purple dragon is born with the ability to speak with anyone moments after hatching from their egg. Purple dragons readily make use of this ability, typically amassing large followings of loyal minions that will do their bidding for the promise of power and other tangible rewards. It is said that anywhere a purple dragon is spotted, there is certainly a network of criminals, spies, thieves, and other creatures with ill-intentions working on the dragon’s behalf. Many purple dragons consider their servants to be a fine collection and often have obvious favorites among them.

 

Family First. While not necessarily always the case, unlike most other dragons it is very common for purple dragon families to stay together. Couplings of purple dragons will usually have few children for this reason, and any children they do have will typically only leave the nest if there is some kind of disagreement between them and their family. This knack for remaining together makes purple dragons especially dangerous and is why hunting young purple dragons is almost universally seen as an idiotic exercise, for even if you succeed, the hunter’s town may yet pay the price for their actions.

Regional Effects

The region containing a legendary purple dragon’s lair is warped by the dragon’s magic, which creates one or more of the following effects:

 

A veil of darkness enshrouds the land within 1 mile of the dragon’s lair. Flames sputter to stay lit and natural sunlight seems muted. All dim light is treated as darkness and creatures with darkvision are unable to see in the dark as though they did not have darkvision.

The numerous tunnels into the ground have given rise to many strange creatures that are typically only found in deep caves and underground lairs. Basilisks, trolls, minotaurs, and other subterranean creatures are much more common than they otherwise would be. Undead creatures are also frequently present due to the purple dragon’s potential disruption to underground gravers and catacombs.

Any creature who walks on a surface touching the ground within half a mile of the dragon’s lair and weighs at least 10 pounds can be detected as though with tremorsense by the dragon.

 

If the dragon dies, the shroud of darkness is lifted immediately and the caves of its lair will slowly fill in and collapse over the course of one year.

Lair and Lair Actions

A Purple Dragon’s Lair

A purple dragons make their homes deep in the rock of mountainous areas and foothills. Their lairs are complex networks of overlapping tunnels which can run for miles depending on the size, age, and number of dragons present, but the most important thing is that their lair remains dark in order to maximize the effects of their blinding breath weapon. Should the dragon encounter stone too hard to dig through while creating its lair, the dragon’s breath weapon can melt solid rock at a rapid rate, allowing them to forge ahead. These subterranean lairs often have numerous openings which allow the dragon to move around freely undetected by most within the bowels of the stone and dirt. Each entrance to the purple dragon’s lair is meticulously hidden, and will usually open up near a prairie or field with ample prey.

 

Lair Actions

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

  •  A tunnel collapses in a 20-foot radius centered on a point within 120 feet of the dragon. All creatures in the area must succeed on a DC 15 Dexterity saving throw or be knocked prone and restrained by falling rocks. A creature can use an action to attempt a DC 15 Strength check to free itself or a pinned ally it can reach. This may also cause a new pathway to open up at the DM’s discretion.
  • The dragon attempts to slip away into one of the many interconnected tunnels of the lair. If no tunnel is easily accessible, it will smash a hole in a nearby wall, creating a new opening it can move through to escape into its lair. As part of this lair action, the purple dragon may attempt a stealth check to remain hidden.
  • The dragon sunders the wall of its lair causing jagged fragments of hardened rock previously melted by the dragon’s plasma breath flying towards a 20-foot area the dragon can see that is within 120 feet. All creatures in the area take 26 (4d12) piercing damage, or half as much on a successful DC 15 Dexterity saving throw.

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

Habitat: CoastalDesertForestHillMountain

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