Dragon, Sapphire Young Adult (CR 6)
AC: 21 (+9 natural, +2 Dex), touch 13, flat-footed 19
Hit Dice: 11d12+22 (93 hp)
Fort +9, Ref +9, Will +9
Speed: 40 ft., fly 150 ft. (poor), burrow 15 ft., swim 10 ft.
Space: 5 ft./5 ft.
Base Attack +11; Grapple +13
Attack: 1 Bite +13, 2 claws +8, 2 wings +8 melee; Breath +13 ranged
Damage: 1 bite 1d8+2, 2 claws 1d6+1, 2 wings 1d4+1, Breath weapon 6d4 (17)
Special Attacks/Actions: Breath Weapon 6d4 (17)
Abilities: Str 15, Dex 14, Con 15, Int 14, Wis 15, Cha 14
Special Qualities: Electricity immunity, spider climb
Feats: #Feats: 4
Skills: Skill points: 28
Advancement: 12-13 HD (Medium-size)
Climate/Terrain: Inner Planes, underground
Organization: Solitary or clutch (2-5)
Treasure/Possessions: Double Standard
Monster Manual II
Breath Weapon (Su): A sapphire dragon breathes a cone of nearly inaudible sonic energy. In addition to making a Reflex saving throw (DC 21) against sonic damage (10d4), each creature within the cone must succeed at a Will save (same DC) or become panicked for 1d4 rounds. Using a breath weapon is a standard action. Once a dragon breathes, it can't breathe again until 1d4 rounds later. A blast from a breath weapon always starts at the dragon's mouth and extends in a direction of the dragon's choice.
Frightful Presence (Ex): A young adult dragon can unsettle foes with its mere presence. The ability takes effect automatically whenever the dragon attacks, charges, or flies overhead. Creatures within a radius of 150 feet are subject to the effect if they have fewer HD than the dragon (17 HD).
A potentially affected creature that succeeds at a Will save (DC 21) remains immune to that dragon's frightful presence for one day. On a failure, creatures with 4 or fewer HD become panicked for 4d6 rounds and those with 5 or more HD become shaken for 4d6 rounds.
Dragons ignore the frightful presence of other dragons.
This subtype usually is used for elementals and outsiders with a connection to the Elemental Plane of Earth. Earth creatures usually have burrow speeds, and most earth creatures can burrow through solid rock.