This seven-headed serpent has serrated fangs, and moves with incredible speed despite its massive bulk.
Mythic Hydra CR 9/MR 3
Str 17, Dex 12, Con 20, Int 2, Wis 11, Cha 9
Base Atk +7; CMB +12; CMD 23 (can’t be tripped)
Feats Combat Reflexes M, Iron Will, Lightning Reflexes, ToughnessM
Skills Perception +12, Swim +11; Racial Modifiers +2 Perception
SQ hydra traits, regenerate head
A mythic hydra can be killed by severing all of its heads or slaying its body. Any attack that is not an attempt to sever a head affects the body, including area attacks or attacks that cause piercing or bludgeoning damage. To sever a head, an opponent must make a sunder attempt with a slashing weapon targeting a head.
A head is considered a separate weapon with hardness 0 and hit points equal to the hydra’s Hit Dice. To sever a head, an opponent must deal enough damage to reduce the head’s hit points to 0 or fewer. Severing a head deals damage to the hydra’s body equal to the hydra’s current Hit Dice. A hydra can’t attack with a severed head, but takes no other penalties.
When a mythic hydra’s head is destroyed, two heads regrow in 1d4 rounds. A mythic hydra can’t have more than twice its original number of heads at any one time. To prevent new heads from growing, at least 5 points of acid or fire damage must be dealt to the stump (a touch attack to hit) before they appear. Acid or fire damage from area attacks can affect stumps and the body simultaneously. A hydra doesn’t die from losing heads until all its heads are cut off and the stumps are seared by acid or fire.
Environment temperate marshes
A mythic hydra is a deadly combination of bites, lunges, speed, and durability. Descended from the very first of its kind, it may run wild. Or created whole by some divine agent, it could be placed as a guardian of a sacred site or a portal to the underworld. Some mythic hydras are reputed to have poisonous breath and blood, or to be so toxic that they corrupt the ground they crawl upon.
Pathfinder Roleplaying Game Mythic Adventures © 2013, Paizo Publishing, LLC; Authors: Jason Bulmahn, Stephen Radney-MacFarland, Sean K Reynolds, Dennis Baker, Jesse Benner, Ben Bruck, Jim Groves, Tim Hitchcock, Tracy Hurley, Jonathan Keith, Jason Nelson, Tom Phillips, Ryan Macklin, F. Wesley Schneider, Amber Scott, Tork Shaw, Russ Taylor, and Ray Vallese.