Dragon Turtle

Gargantuan dragon · CR 17 · 18,000 XP

20 AC · 356 HP

Roll the Dragon Turtle

Bite

Tail

Steam Breath DC 19 CON

Press a roll button. The dice land here.

Stat block

Type: Gargantuan dragon, neutral
Armor Class: 20
Hit Points: 356 (23d20 + 115)
Speed: 20 ft., swim 50 ft.
Challenge: 17 (18,000 XP), proficiency +6
Resistances: fire
Senses: darkvision 120 ft., passive perception 11
Languages: Draconic, Primordial (Aquan)

STR	DEX	CON	INT	WIS	CHA
25	10	20	10	12	12

Dragon Turtle odds against your Armor Class

Chance to hit, then average damage per attack once misses and critical hits are counted.

Attack	AC 12	AC 14	AC 15	AC 16	AC 18	AC 20
Bite (+13)	95% 30.1 dmg	95% 30.1 dmg	95% 30.1 dmg	90% 28.6 dmg	80% 25.6 dmg	70% 22.5 dmg
Tail (+13)	95% 17.7 dmg	95% 17.7 dmg	95% 17.7 dmg	90% 16.8 dmg	80% 15 dmg	70% 13.2 dmg
Full turn (3 attacks)	90.4 dmg	90.4 dmg	90.4 dmg	85.9 dmg	76.7 dmg	67.6 dmg

Dragon Turtle hit points

The stat block uses the average, 356. Rolled, 23d20 + 115 lands anywhere from 138 to 575.

138chance of each total for 23d20 + 115575

Hit points	Chance
247 or more	>99%
357 or more	50%
466 or more	<1%
531 or more	<1%

Roll 23d20 + 115 on its own with the d20 roller, or weigh it up on the dice calculator.

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 () Piercing damage plus 7 () Fire damage. Being underwater doesn’t grant Resistance to this Fire damage.

Tail. Melee Attack Roll: +13, reach 15 ft. Hit: 18 () Bludgeoning damage. If the target is a Huge or smaller creature, it has the Prone condition.

Steam Breath. Constitution Saving Throw: DC 19, each creature in a 60-foot Cone. Failure: 56 () Fire damage. Success: Half damage. Failure or Success: Being underwater doesn’t grant Resistance to this Fire damage.

Other CR 17 monsters

Adult Gold Dragon Adult Red Dragon Sphinx of Valor

This page includes material from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, available at dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License. The averages, odds and tables are ours.