XP 51,200
Advanced variant wyvern
NE Huge dragon
Init +2; Senses darkvision 60 ft., low-light vision, scent; Perception +28

AC 27, touch 11, flat-footed 24 (+2 Dex, +1 dodge, +16 natural, –2 size)
hp 250 (20d12+120)
Fort +18, Ref +14, Will +13
Immune paralysis, sleep

Speed 20 ft., fly 60 ft. (poor)
Melee sting +26 (2d6+8 plus poison), bite +26 (4d6+8/19–20), 2 wings +21 (2d6+4), tongue +21 (1d4+4 plus grab)
Space 15 ft.; Reach 15 ft.; 30 ft. with tongue
Special Attacks pull (tongue, 30 ft.), rake (2 talons +26, 1d8+8)

If they can, the barbtongued wyverns start combat by swooping in to attack the PCs before the party can fully enter a room, limiting melee combat options while still being able to take advantage of their reach to strike at foes farther up the stairs or down a hall.

Barbtongued wyverns fight to the death.

Str 27, Dex 14, Con 22, Int 7, Wis 12, Cha 9
Base Atk +20; CMB +30; CMD 43
Feats Critical Focus, Dodge, Improved Critical (bite), Improved Natural Attack (bite), Improved Vital Strike, Improved Natural Attack (sting), Improved Natural Attack (wing), Power Attack, Staggering Critical, Vital Strike
Skills Fly +17, Perception +28, Sense Motive +24, Stealth +17
Languages Draconic

Poison (Ex)

Sting—injury; save DC 17; frequency 1/round for 6 rounds; effect 1d4 Con damage; cure 2 consecutive saves. The save DC is Constitution-based.