Dragon Turtle
Gargantuan dragon, neutral
Armor Class 20 (natural armor)
Hit Points 356 (23d20 + 115)
Speed 20 ft., swim 50 ft., climb 10 ft.
str
25 (+7)
dex
10 (+0)
con
20 (+5)
int
10 (+0)
wis
12 (+1)
cha
12 (+1)
Saving Throws Con +11, Wis +7
Damage Resistances fire
Senses darkvision 120 ft., passive Perception 11
Languages Draconic, Primordial (Aquan)
Challenge 17 (18,000 XP)
Amphibious. The dragon can breathe air and water.
Actions
Bite. Melee Attack Roll: +13, reach 15 ft. 23 (3d10 + 7) Piercing damage plus 7 (2d6) Fire damage. Being underwater doesn't grant Resistance to this Fire damage.
Multiattack. The dragon makes three Bite attacks. It can replace one attack with a Tail attack.
Steam Breath. Constitution Saving Throw: DC 19, each creature in a 60-foot Cone. Failure: 56 (16d6) Fire damage. Success: Half damage. Failure or Success: Being underwater doesn't grant Resistance to this Fire damage.
Tail. Melee Attack Roll: +13, reach 15 ft. 18 (2d10 + 7) Bludgeoning damage. If the target is a Huge or smaller creature, it has the Prone condition.