Hydra

5.5e

huge monstrosity, unaligned

Challenge 8 (3900 XP)

STR
20 (+5)
DEX
12 (+1)
CON
20 (+5)
INT
2 (-4)
WIS
10 (+0)
CHA
7 (-2)

Defense

Armor Class 15 (Natural Armor)
Hit Points 184 (16d12+80)
Speed 40 ft., swim 40 ft.

Proficiencies & Senses

Skills Perception +3
Darkvision 60 ft.
Passive Perception 13

Traits

Condition Immunities Blinded, Charmed, Deafened, Frightened, Stunned, Unconscious

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 Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 10 (1d10 + 5) Piercing damage.

Reference Text

The hydra is a legendary serpentine monster with multiple heads, known for its regenerative abilities. It dwells in coastal and swampy regions, and its heads can only be permanently destroyed by fire.