Netherwyrm

Netherwyrm
Creature statistics
XP Value 6,500
Treasure Type V
Type Dragon
Size Very Large
Climate/Terrain Caves, Ruins, Swamps, Subterranean
Frequency Very Rare
Number Appearing 1
Movement Speed Fast
Hit Points 48 (13d6+3)
Defense Score 6
Defense Target 3+
Melee Attack Score Bite/Claw 9
Attack Target 3+
On Hit Drain 3+
Melee Attack Score Tail Swipe 7
Attack Target 3+
Reach 20 feet
Tactics Double Attack (3)
Preemptive Attack 4+
Powers Acid Breath (3)
Fear (2)
Immunity Enchantment, Poison
Resistance None
Weakness None

"The Netherwyrm is a slender, serpentine dragon that dwells within ruins, dungeons, and swamps. They feed on whatever living creature they can overpower, with a bite that drains the life from its victim. But these ancient creatures are also rumored to hoard, and consume, rare gemstones, drawing strength from the stones they swallow..."

...from the Wyrmbrand's Monstrous Archive entry 'Serpens Tenebralis'
More Info...

The Ancient Dragon...

The Netherwyrm is an ancient Dragon, several hundred years old, and much more vile than younger, less world-weary dragons.

The Netherwyrm has shed its wings and lower limbs, as well as its vanity - while dragons might be evil, they are still rational, but the Netherwyrm is purely malevolent...

Attributes

Ability scores
STR 8 (4)
VIT 9 (5)
DEX 7 (4)
INT 7 (4)
WIS 6 (3)
CHA 4 (2)
Additional scores
Initiative 4
Awareness 3
Morale 3