Dragon, Sapphire Young (CR 2)
AC: 16 (+2 size, +3 natural, +1 Dex), touch 13, flat-footed 15
Hit Dice: 5d12+5 (37 hp)
Fort +5, Ref +5, Will +5
Speed: 40 ft., fly 100 ft. (average), burrow 15 ft., swim 10 ft.
Space: 2 1/2 ft./0 ft. (5 ft. with bite)
Base Attack +5; Grapple +3
Attack: 1 Bite +7, 2 claws +2 melee; Breath +7 ranged
Damage: 1 bite 1d4+0, 2 claws 1d3+0, Breath weapon 2d4 (13)
Special Attacks/Actions: Breath Weapon 2d4 (13)
Abilities: Str 11, Dex 12, Con 13, Int 12, Wis 13, Cha 12
Special Qualities: Electricity immunity, spider climb
Feats: #Feats: 2
Skills: Skill points: 11
Advancement: 6-7 HD (Tiny)
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 17) against sonic damage (6d4), 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.
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.