Hydra

Huge monstrosity · CR 8 · 3,900 XP

15 AC · 184 HP

Roll the Hydra

Bite

Press a roll button. The dice land here.

Stat block

Type: Huge monstrosity, unaligned
Armor Class: 15
Hit Points: 184 (16d12 + 80)
Speed: 40 ft., swim 40 ft.
Challenge: 8 (3,900 XP), proficiency +3
Condition immunities: Blinded, Charmed, Deafened, Frightened, Stunned, Unconscious
Senses: darkvision 60 ft., passive perception 16
Languages: None

STR	DEX	CON	INT	WIS	CHA
20	12	20	2	10	7

Hydra 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 (+8)	85% 9.2 dmg	75% 8.2 dmg	70% 7.6 dmg	65% 7.1 dmg	55% 6.1 dmg	45% 5 dmg
Full turn (1 attacks)	9.2 dmg	8.2 dmg	7.6 dmg	7.1 dmg	6.1 dmg	5 dmg

Hydra hit points

The stat block uses the average, 184. Rolled, 16d12 + 80 lands anywhere from 96 to 272.

96chance of each total for 16d12 + 80272

Hit points	Chance
140 or more	>99%
184 or more	51%
228 or more	<1%
254 or more	<1%

Traits

Hold Breath. The hydra can hold its breath for 1 hour.

Multiple Heads. The hydra has five heads. Whenever the hydra takes 25 damage or more on a single turn, one of its heads dies. The hydra dies if all its heads are dead. At the end of each of its turns when it has at least one living head, the hydra grows two heads for each of its heads that died since its last turn, unless it has taken Fire damage since its last turn. The hydra regains 20 Hit Points when it grows new heads.

Reactive Heads. For each head the hydra has beyond one, it gets an extra Reaction that can be used only for Opportunity Attacks.

Actions

Multiattack. The hydra makes as many Bite attacks as it has heads.

Bite. Melee Attack Roll: +8, reach 10 ft. Hit: 10 () Piercing damage.

Other CR 8 monsters

Assassin Chain Devil Cloaker Frost Giant Hezrou Spirit Naga Tyrannosaurus Rex Young Bronze Dragon Young Green Dragon

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.