Dragon Turtle

Gargantuan Dragon, Neutral

AC 20 Initiative +6 (16) HP 356 (23d20 + 115) Speed 20 ft., Swim 50 ft.

STR 25 +7 +7

DEX 10 +0 +0

CON 20 +5 +11

INT 10 +0 +0

WIS 12 +1 +7

CHA 12 +1 +1

Resistances

Fire

Senses

Darkvision 120 ft.; Passive Perception 11

Languages

Draconic, Primordial (Aquan)

CR

17 (XP 18,000; PB +6)

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 5–6). 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.