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Dungeon Dragon, Great Wyrm

This dragon has a long serpentine neck, small wings, and glistening scales. Two small horns dominate its triangular head. Its body is gray in color, with scales tipped in flecks of gold and green. Its eyes are rounded and gray.

Great Wyrm Dungeon Dragon (AKA Gargax the Mighty, Master of the Dungeon Dragons)
CR 17

XP 102,400
N Gargantuan dragon (shapechanger)
Init +2; Senses dragon senses; Perception +40
Aura frightful presence (360 ft., DC 26)


AC 38, touch 4, flat-footed 38 (–2 Dex, +34 natural, –4 size)
hp 287 (23d12+138)
Fort +21; Ref +13; Will +21
DR 20/magic; Immune enchantment spells and effects, paralysis, sleep; SR 28


Speed 30 ft., fly 250 ft. (clumsy)
Melee bite +32 (4d6+19), 2 claws +32 (2d8+13), 2 wings +30 (2d6+6), tail slap +30 (2d8+19)
Space 20 ft.; Reach 15 ft. (20 ft. with bite)
Special Attacks breath weapon (120 ft. line or 60 ft. cone, DC 27, confusion 1d6 rounds), crush, tail sweep
Spell-like Abilities (CL 23rd):

At-willcharm person (DC 16), charm monster (DC 19), detect thoughts (DC 17), mass charm monster (DC 23), mass suggestion (DC 21), suggestion (DC 18)
3/daydominate monster (DC 23)

Sorcerer Spells Known (CL 17th)

8th (4/day)antipathy (DC 23), maze
7th (6/day)greater teleport, mass hold person (DC 22), project image (DC 22)
6th (6/day)antimagic field, greater dispel magic, move earth
5th (7/day)mind fog (DC 20), persistent image, prying eyes, teleport
4th (7/day)arcane eye, detect scrying, illusory wall (DC 19), lesser globe of invulnerability
3rd (7/day)arcane sight, deep slumber (DC 18), dispel magic, major image (DC 18)
2nd (7/day)arcane lock, magic mouth (DC 17), make whole, phantom trap, see invisibility
1st (8/day)alarm, hold portal, shield, silent image (DC 16), ventriloquism
0th (at will)dancing lights, daze (DC 15), detect magic, ghost sound (DC 15), light, mending, message, prestidigitation, read magic


Str 37, Dex 7, Con 22, Int 22, Wis 22, Cha 20
Base Atk +23; CMB +40; CMD 48 (52 vs. trip)
Feats Alertness, Craft Wondrous Item B, Flyby Attack, Great Fortitude, Hover, Improved Initiative, Iron Will, Lightning Reflexes, Master Craftsman B, Multiattack, Skill Focus (Bluff),Persuasive, Skill Focus (Craft [crystal carving]), Skill Focus (Knowledge [engineering])
Skills Appraise +13, Bluff +37, Craft (crystal carving) +27, Craft (traps) +20, Diplomacy +24, Disable Device +17, Fly +10, Intimidate +35, Knowledge (arcana) +32, Knowledge (dungeoneering) +32, Knowledge (engineering) +38, Linguistics +28, Perception +40, Sense Motive +36, Spellcraft +32; Racial Modifiers +4 Perception
Languages 25 languages (except Druidic), plus Common and Draconic
SQ change shape (alter self), craft crystal ball


Breath Weapon (Su)

A dungeon dragon's breath weapon is a line or cone of warm mist. Creatures caught in the area must succeed on Fortitude save or be affected as if by a confusion spell for 1d6 rounds.

Change Shape (Su)

At will, a very young or older dungeon dragon can assume the form of any Small or Medium humanoid creature (as the alter self spell). It can remain in its humanoid form indefinitely. It cannot take the form of a specific individual.

Craft Crystal Ball (Ex)

Dungeon dragon parents begin teaching their wyrmlings the necessary skills and spells to craft a crystal ball soon after they leave the egg. A dungeon dragon gains the Master Craftsman feat for free as a bonus feat without having to meet the prerequisites.

Craft Wondrous Item (Ex)

Older dungeon dragons create new crystal balls with additional powers as they grow in intelligence and spellcasting ability. A young adult dungeon dragon gains the Craft Wondrous Item feat for free as a bonus feat.

Dominate Monster (Sp)

A great wyrm dungeon dragon can use this ability three times per day. It works as a dominate monster spell. This ability is the equivalent of an 8th-level spell.

Editor's Note
Technically, Gargax the Mighty (Gary to his friends), has 6 too many skill points.  Frankly, at this level, it doesn't really have much impact.  If you feel it necessary reduce three skills at random by two points each. 

GM's are actually encouraged to ignore this discrepancy.  It's Gary after all.