Monsterbrew

SRD

Dragon Turtle

gargantuan dragon, neutral

AC 20

Initiative +0 (10)

HP 356 (23d20 + 115)

Speed 20 ft., Swim 50 ft.

ModSaveSTR 25+7+7DEX 10+0+0CON 20+5+11
ModSaveINT 10+0+0WIS 12+1+7CHA 12+1+1

Resistances fire

Senses Darkvision 120 ft. Passive Perception 11

Languages Draconic, primordial (aquan)

CR 17 (XP 18,000; PB +6)

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 (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.

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.

Dragon Turtle is from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, used under the Creative Commons Attribution 4.0 International License. Full attribution is on the Licenses & Attribution page.