22 (natural armor)
367 (21d20 + 147)
40 ft., fly 80 ft.
Dex +9, Con +14
Intimidation +9, Percception +11
fire; bludgeoning, piercing, and slashing damage from nonmagical weapons
darkvision 120 ft.
Draconic, Undercommon
23
A creature that touches the dragon or hits it with a melee attack while within 5 feet of it takes 10 (3d6) fire damage.
If the lava dragon fails a saving throw, it can choose to succeed instead.
The Dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 9 (2d8) fire damage.
Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage plus 4 (1d8) fire damage.
Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) bludgeoning damage.
Each creature of the dragon's choice that is within 120 feet of the Dragon and aware of it 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 dragon's Frightful Presence for the next 24 hours.
The Dragon exhales lava in a 90-foot cone. Each creature in that area must make a DC 22 Dexterity saving throw, taking 67 (15d8) fire damage on a failed save, or half as much on a success. If the target loses half of their hit points from this attack, the lava solidifies and the target is restrained. The target can make a DC 15 Strength saving throw at the end of each of its turns to break free from the solid lava.
The dragon makes a Wisdom (Perception) check.
The dragon makes a tail attack.
The dragon beats its wings. Each creature within 10 feet of the storm dragon must succeed on a DC 22 Dexterity saving throw or take 10 (3d6) bludgeoning damage and be knocked prone. The sea dragon can then fly up to half its flying speed.