Bestiary · Monster

PR 8

Hydra

A hydra is a reptilian monster with five heads. Cutting one off makes the problem worse, because two grow back. Fire stops the regrowth, but someone has to apply it while the other four heads are occupied.

Hydra, drawn at Huge scale
Physiology
Monster
Size
Huge
Speed
30 ft., swim 30 ft.
Armor class
16 (natural armor)
Hit points
161 (14d12 + 70)
Proficiency
+3
  • STR 20 +5 save +5
  • DEX 12 +1 save +1
  • CON 20 +5 save +5
  • INT 2 -4 save -4
  • WIS 10 +0 save +0
  • CHA 7 -2 save -2
Skills
Perception +3
Passive Perception
13
Senses
darkvision 60 ft.
Languages
None
Found in
Wetland

Traits

  • Multiple Heads

    The hydra has five heads. While it has more than one it has advantage on saving throws against being Blinded, Charmed, Deafened, Frightened, Stunned or knocked Unconscious.

  • Reactive Heads

    The hydra can take one reaction per head per round.

  • Regrow Heads

    Whenever the hydra takes 25 or more damage in a single turn, one head dies. At the end of its turn it grows two heads for each that died, unless it has taken fire damage since its last turn. It regains 10 hit points for each head grown.

Actions

  • Bite

    +8 to hit · reach 5 ft.

    1d6 + 5 piercing damage

    A bite from one head.

  • Many Bites

    The hydra makes one Bite attack for each head it currently has.