Giant Lightning Serpent
CREATURE 2 +7; low-light vision, scent (imprecise) 30 feet
Acrobatics +9, Athletics +8, Stealth +8, Survival +6
Str +2, Dex +4, Con +3, Int -4, Wis +1, Cha -2
AC 19; Fort +7, Ref +10, Will +7
HP 27
Coiled Opportunity (Special)
As Attack of Opportunity, but the serpent can use this reaction only if it's coiled.
A creature within the monster's reach uses a manipulate action or a move action, makes a ranged attack, or leaves a square during a move action it's using.
The monster attempts a melee Strike against the triggering creature. If the attack is a critical hit and the trigger was a manipulate action, the monster disrupts that action. This Strike doesn't count toward the monster's multiple attack penalty, and its multiple attack penalty doesn't apply to this Strike.
20 feet, climb 20 feet, swim 20 feet
Melee Fangs +11 (finesse), Damage 1d8+2 piercing plus 1d4 electricity
Coil
The serpent uses an action to coil itself; increasing its reach with its fangs from 5 feet to 10 feet. After the serpent strikes with its fangs, it becomes uncoiled.
Lightning Rattle
The serpent rattles its strange metal tail and unleashes a bolt of lightning in a 60-foot line. The bolt deals 2d10 electricity damage (DC 17 basic Reflex save).
Once the giant lightning serpent uses this ability, it must wait 1d4 rounds before doing so again.
Pathfinder Adventure: The Fall of PlaguestoneOGL