| A Mutant Serpent that channels Electricity | |
| Perception | Expert ; low-light vision, scent (imprecise) 30 feet | 
| Skills | Acrobatics Trained , Athletics Expert , Stealth Trained , Survival Trained | 
| STR +2 , DEX +4 , CON +3 , INT -4 , WIS +1 , CHA -2 | |
| AC | 19 | 
| Saving Throws | Fort +7, Ref +10, Will +7 | 
| HP | 27 | 
| Speed | 20 feet, climb 20 feet, swim 20 feet | 
| Melee |  Fangs  Expert  (finesse)  +6   +1 , Damage  Piercing  and  electricity | 
| Special Abilities | Coiled Opportunity  As Attack of Opportunity, but the serpent can use this reaction only if it’s coiled.
 
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  electricity  damage (DC 17 basic Reflex save). Once the giant lightning serpent uses this ability, it must wait  1d4  rounds before doing so again |