Huge dragon, any chaotic

Armor Class: 18 (natural armor)

Hit Points: 225 (18d12 + 108) 18d12+108

Speed: 40 ft , fly: 120 ft

STR

24 +7

DEX

19 +4

CON

23 +6

INT

10 +0

WIS

15 +2

CHA

18 +4

Saving Throws: Dex +9, Con +11, Wis +7, Cha+9

Skills: Acrobatics +9, Athletics +12, Intimidation +9, Perception +7

Senses: darkvision 120 ft., passive Perception 17

Languages: Draconic; understands Common but can't speak

Challenge Rating: 16

Boltwing Marauder by Raymond Swanland

Actions

Multiattack. The dragon can use its Frightful Presence and then makes three attacks: one with its bite, and two with its claws.
Bite. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 18 (2d10 + 7) piercing damage plus 5 (1d10) lightning damage.
Claw. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 14 (2d6 + 7) slashing damage.
Tail. Melee Weapon Attack: +12 to hit, reach 15 ft., one target. Hit: 16 (2d8 + 7) bludgeoning damage.
Lightning Breath (Recharge 5–6). The dragon exhales lightning 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) lightning damage on a failed save, or half as much damage on a successful one.
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 17 Wisdom saving throw or become frightened for 1 minute. A creature repeats the saving throw at the end of its turn, 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.

Reactions

Vicious Reprisal. In response to taking damage, the dragon makes a bite attack against a random creature within 5 feet of it. If no creature is within reach, the dragon moves up to half its speed toward an enemy it can see, without provoking opportunity attacks.

Legendary Actions

The dragon can take 3 legendary actions, choosing from the options below. Only one legendary action 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 10 feet of the dragon must succeed on a DC 20 Dexterity saving throw or take 14 (2d6 + 7) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.

Regional Effects

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

• Thunderstorms rage within 6 miles of the lair.
• Small avalanches of rock intermittently fall, blocking a path or burying intruders. A buried creature is restrained and has to hold its breath until it is dug out.

Suggested Environments

Environment. Grassland, Plains, Ruins