Skip to main content

Dragon Turtle

Gargantuan Dragon, neutral

CR 17

18,000 XP

AC: 20 (natural armor)
HP: 341 (22d20+110)
Speed: walk 20 ft. , swim 40 ft.
Senses: darkvision 120 ft., passive Perception 11
Languages: Aquan, Draconic
STR
25
+7
DEX
10
+0
CON
20
+5
INT
10
+0
WIS
12
+1
CHA
12
+1

Special 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.

Quick Reference

Challenge: CR 17
Type: Dragon
Size: Gargantuan
Alignment: neutral
Best for a party of 4 at level 15-17

Running This Encounter

The Dragon Turtle is a devastating apex predator that dominates aquatic and coastal encounters. Use its massive size and speed to create dynamic battlefield positioning, leveraging water terrain for three-dimensional combat. Emphasize its legendary actions and lair actions if this is its domain, making players feel the weight of facing a creature that reshapes its environment. Its breath weapon and spellcasting make it versatile enough to threaten entire parties, while its intelligence ensures tactically sound decisions.

Combat Tactics

The Dragon Turtle prioritizes dealing maximum area damage with its destructive Steam Breath, positioning itself to catch multiple targets while staying out of melee range when possible. It uses its high Intelligence (16) to coordinate attacks strategically, targeting spellcasters and vulnerable party members with melee strikes or its bite attack, and employing its spellcasting to control the battlefield or escape dangerous situations.

Environment & Setting

This monster excels in deep ocean trenches, coastal caves, or vast underground lakes where its 40-foot swim speed provides superiority. Encounters are most memorable when conducted in water, where it gains environmental advantage and can utilize three-dimensional movement, sunken ruins, or underwater terrain that complicates party positioning.