Dragon Turtle
Gargantuan Dragon, NeutralAC 20
HP 356 (23d20 + 115)
Speed 20 ft., swim 50 ft.
STR
25 (+7)
Save +7
DEX
10 (+0)
Save +0
CON
20 (+5)
Save +11
INT
10 (+0)
Save +0
WIS
12 (+1)
Save +7
CHA
12 (+1)
Save +1
Saving Throws CON +11, WIS +7
Resistances Fire
Senses Darkvision 120 ft., Passive Perception 11
Languages Draconic, Primordial (Aquan)
CR 17
Traits
Amphibious. The dragon can breathe air and water.
Actions
Multiattack. The dragon makes three Bite attacks. It can replace one attack with a Tail attack.
Bite. Melee Attack Roll: +13, reach 15 ft. Hit: 23 (3d10 + 7) Piercing damage plus 7 (2d6) Fire damage. Being underwater doesn't grant Resistance to this Fire damage.
Tail. Melee Attack Roll: +13, reach 15 ft. Hit: 18 (2d10 + 7) Bludgeoning damage. If the target is a Huge or smaller creature, it has the Prone condition.
Steam Breath (Recharge 5+). con 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.