View source for SRD:Seven-Headed Hydra

===PYROHYDRA===
Huge [[SRD:Magical Beast Type|Magical Beast]] ([[SRD:Fire Subtype|Fire]])

These reddish hydras can breathe jets of fire 10 feet high, 10 feet wide, and 20 feet long. All heads breathe once every 1d4 rounds. Each jet deals 3d6 points of fire damage per head. A successful [[SRD:Saving Throw|Reflex save]] halves the damage. The save [[SRD:DC|DC]] is 10 + 1/2 hydra’s original number of heads + hydra’s [[SRD:Constitution|Con]] modifier.

Fire attacks cannot prevent a pyrohydra’s stump from growing new heads (since a pyrohydra has immunity to fire), but 5 points of cold damage does.
Alignment	Usually neutral +
Challenge Rating	6 + and 8 +
Environment	Temperate marshes (Pyro: Warm marshes) (Cryo: Cold marshes) +
Level Adjustment	— +
Size	Huge +
Title	Seven-Headed Hydra +
Type	Magical Beast +