Actions/Abilities/Traits: (D&D 5e)
Action
Bite
Melee Weapon Attack: +16 to hit, reach 15 ft., one target. Hit: 16 (2d10 + 5) piercing damage.
Action
Breath Weapon (Recharge 5-6)
The storm 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.
Action
Claw
Melee Weapon Attack: +16 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) slashing damage.
Action
Multiattack
The storm dragon makes three attacks: one with its bite and two with its claws.
Legendary Action
Detect
The dragon makes a Wisdom (Perception) check.
Legendary Action
Tail Attack
Melee Weapon Attack: +13 to hit, reach 20 ft., one target. Hit: 14 (2d8 + 5) bludgeoning damage.
Legendary Action
Wing Attack (Costs 2 Actions)
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 storm dragon can then fly up to half its flying speed.
Special
1/day
chain lightning, conjure elemental (water), control weather, plane shift, tsunami
Special
2/day
control water, dispel magic, fog cloud, gust of wind
Special
Innate Spellcasting
The storm dragon's innate spellcasting ability is Wisdom (spell save DC 22). The storm dragon can innately cast the following spells, requiring no components.
Special
Legendary Resistance (3/day)
If the storm dragon fails a saving throw, it can choose to succeed instead.
Special
Siege Monster
The storm dragon does double damage to objects and structures.
Special
Storm Vision
The storm dragon can see normally through light or heavy obscurement caused by high winds, heavy rain, fog, clouds, or mist.