This serpentine dragon has skin the color of deep volcanic rock, enormous claws, and jagged, stonelike horns and scales.
Ancient Underworld Dragon CR 16
Speed 40 ft., burrow 50 ft., fly 200 ft. (poor)
Melee bite +30 (2d8+12), 2 claws +29 (2d6+8/19-20), gore +29 (2d6+12), tail slap +24 (2d6+12)
Space 15 ft.; Reach 10 ft. (15 ft. with bite)
Special Attacks adamantine claws, breath weapon (100-ft. line, 20d6 fire damage, DC 28), crush (DC 28, 2d8+12)
Spell-Like Abilities (CL 22nd; concentration +27)
Spells Known (CL 13th; concentration +18)
6th (4/day)—disintegrate (DC 21), flesh to stone (DC 21)
5th (7/day)—passwall, transmute rock to mud, waves of fatigue
4th (7/day)—enervation, shout (DC 19), solid fog, stone shape
3rd (7/day)—displacement, fireball (DC 18), protection from good, rage, slow
2nd (7/day)—acid arrow, daze monster (DC 17), flaming sphere (DC 17), scorching ray
1st (8/day)—burning hands (DC 16), cause fear (DC 16) magic missile, ray of enfeeblement (DC 16), true strike
0 (at will)—acid splash, bleed (DC 15), detect magic, flare (DC 15), ghost sound, mage hand, read magic, resistance, touch of fatigue (DC 15)
Str 35, Dex 8, Con 25, Int 20, Wis 21, Cha 20
Base Atk +22; CMB +36; CMD 45 (49 vs. trip)
Feats Greater Weapon Focus (claw), Improved Bull Rush, Improved Critical (bite, claw), Improved Initiative, Improved Natural Armor, Lunge, Power Attack, Skill Focus (Stealth), Weapon Focus (bite, claw)
Skills Acrobatics +24 (+28 when jumping), Appraise +30, Bluff +30, Climb +37, Fly +16, Intimidate +30, Knowledge (dungeoneering, geography, planes) +30, Perception +30, Stealth +22
Languages Common, Draconic, Dwarven, Giant, Ignan, Terran
SQ change shape, underworld burrower
The claws of an underworld dragon are made of adamantine, and have the qualities of a weapon made from that material.
A very young and older underworld dragon can see perfectly in smoky conditions (such as those created by pyrotechnics).
An adult underworld dragon gains a 10-foot bonus to its burrow speed. When the underworld dragon becomes old and every two age categories thereafter, its burrow speed increases by an additional 10 feet.
Environment any underground