20 (natural armor)
310 (20d20 + 100)
40 ft., fly 80 ft., swim 40 ft.
Str +12, Con +12, Wis +12
Insight +12, Perception +12
darkvision 90 ft.
Draconic, Primordial
23
The storm dragon's innate spellcasting ability is Wisdom (spell save DC 22). It can innately cast the following spells, requiring no material components • 2/Day: control water, dispel magic, fog cloud, gust of wind • 1/Day: chain lightning, conjure elemental (water), control weather, plane shift, tsunami
If the storm dragon fails a saving throw, it can choose to succeed instead.
The storm dragon does double damage to objects and structures.
The storm dragon can see normally through light or heavy obscurement caused by high winds, heavy rain, fog, clouds, or mist.
The storm dragon makes three attacks: one with its bite and two with its claws.
Melee Weapon Attack: +16 to hit, reach 15 ft., one target. Hit: 16 (2d10 + 5) piercing damage.
Melee Weapon Attack: +16 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) slashing damage.
Melee Weapon Attack: +16 to hit, reach 20 ft., one target. Hit: 14 (2d8 + 5) bludgeoning damage.
The sea dragon shoots out a powerful burst of water in a 120-ft. line that is 10 feet wide. Each creature in that line must make a successful DC 22 Dexterity saving throw or take 88 (16d10) force damage and be knocked prone, or half as much damage on a successful one.
The dragon makes a Wisdom (Perception) check.
The dragon makes a tail attack.
The storm dragon beats its wings. Each creature within 10 feet of the storm dragon must succeed on a DC 22 Dexterity saving throw or take 12 (2d6 + 5) bludgeoning damage and be knocked prone. The sea dragon can then fly up to half its flying speed.