Dragon Turtle

Gargantuan dragon, neutral

Armour Class: 20 (natural armour)
Hit Points: 341 (22d20 + 110)
Speed: 20 ft., swim 40 ft.

Saving Throws: Dex +6, Con +11, Wis +7
Damage Resistances: fire
Senses: darkvision 120 ft., passive Perception 11
Languages: Aquan, Draconic
Challenge: 17 (18,000 XP)

Abilities

Amphibious – The dragon turtle can breathe air and water.

Actions

Multiattack – The dragon turtle makes three attacks: one with its bite and two with its claws. It can make one tail attack in place of its two claw attacks.

Bite – Melee Weapon Attack: +13 to hit, reach 15 ft., one target. Hit: 26 (3d12 + 7) piercing damage.

Claw – Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 16 (2d8 + 7) slashing damage.

Tail – Melee Weapon Attack: +13 to hit, reach 15 ft., one target. Hit: 26 (3d12 + 7) bludgeoning damage. If the target is a creature, it must succeed on a DC 20 Strength saving throw or be pushed up to 10 feet away from the dragon turtle and knocked prone.

Steam Breath (Recharge 5–6) – The dragon turtle exhales scalding steam in a 60-foot cone. Each creature in that area must make a DC 18 Constitution saving throw, taking 52 (15d6) fire damage on a failed save, or half as much damage on a successful one. Being underwater doesn’t grant resistance against this damage.