Size/Type: Large Animal
Hit Dice: 3d8 (13 hp)
Speed: 20 ft. (4 squares), climb 20 ft., swim 20 ft.
Armor Class: 15 (-1 size, +3 Dex, +3 natural), touch 12, flat-footed 12
Base Attack/Grapple: +2/+6
Attack: Bite +4 melee (1d4 plus poison)
Full Attack: Bite +4 melee (1d4 plus poison)
Space/Reach: 10 ft./5 ft.
Special Attacks: Poison
Special Qualities: Scent
Saves: Fort +3, Ref +6, Will +2
Abilities: Str 10, Dex 17, Con 11, Int 1, Wis 12, Cha 2
Skills: Balance +11, Climb +11, Hide +8, Listen +5, Spot +6, Swim +8
Feats: Improved Initiative, Weapon FinesseB
Environment: Temperate Marshes
Challenge Rating: 2
Level Adjustment: —
These creatures range widely in size. They are not particularly aggressive, but will often lash out with a bite attack before attempting to retreat.
Viper snakes rely on their venomous bite to kill prey and defend themselves.
Poison (Ex): A viper snake has a poisonous bite that deals initial and secondary damage of 1d6 Con. The save DC varies by the snake’s size, with the Large Viper's Save DC being 11. The save DCs are Constitution-based.
Source: Monster Manual 1