Mephit, Earth (CR 3)

Small Outsider (Earth and Extraplanar)
Alignment: Usually neutral
Initiative: -1 (Dex); Senses: darkvision 60 ft., Listen +6, and Spot +6

AC: 16 (+1 size, -1 Dex, +6 natural), touch 10, flat-footed 16
Hit Dice: 3d8+6 (19 hp); DR: 10/magic
Fort +4, Ref +2, Will +3
Speed: 30 ft., fly 40 ft. (average)
Space: 5 ft./5 ft.
Base Attack +3; Grapple +2
Attack: Claw +7 melee
Full Attack: 2 claws +7 melee
Damage: Claw 1d3+3
Special Attacks/Actions: Breath weapon, spell-like abilities, summon mephit
Abilities: Str 17, Dex 8, Con 13, Int 12, Wis 11, Cha 15
Special Qualities: Change size, Fast healing 2,
Feats: Power Attack; Toughness
Skills: Bluff +8, Diplomacy +4, Disguise +2 (+4 acting), Escape Artist +5, Hide +9, Intimidate +4, Listen +6, Move Silently +5, Spot +6, and Use Rope -1 (+1 with bindings)
Advancement: 4-6 HD (Small); 7-9 HD (Medium-size)
Climate/Terrain: Elemental Plane of Earth
Organization: Solitary, gang (2-4 mephits of mixed types), or mob (5-12 mephits of mixed types)
Treasure/Possessions: Standard

Source: Monster Manual

Breath Weapon (Su): Cone of rock shards and pebbles, 15 feet; damage 1d6, Reflex half DC 12. A mephit can use its breath weapon once every 1d4 rounds as a standard action.

Spell-like Abilities: 1/hour - enlarge; 1/day - soften earth and stone. These abilities are as the spells cast by a 6th-level sorcerer (save DC 12 + spell level).

Fast Healing (Ex): An earth mephit heals 2 points of damage each round, only if it is underground or buried up to its waist in earth.

Summon Mephit (Sp): Once per day, all mephits can summon other mephits much as though casting a summon monster spell, but they have only a 25% chance of success to summon one mephit of the same type. Roll d%: On a failure, no creature answers the summons. A mephit that has just been summoned cannot use its own summon ability for 1 hour.

Earth Subtype

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.

Extraplanar Subtype

A subtype applied to any creature when it is on a plane other than its native plane. A creature that travels the planes can gain or lose this subtype as it goes from plane to plane. This book assumes that encounters with creatures take place on the Material Plane, and every creature whose native plane is not the Material Plane has the extraplanar subtype (but would not have when on its home plane). An extraplanar creatures usually has a home plane mentioned in its description. These home planes are taken from the Great Wheel cosmology of the D&D game (see Chapter 5 of the Dungeon Master's Guide). If your campaign uses a different cosmology, you will need to assign different home planes to extraplanar creatures.

Creatures not labeled as extraplanar are natives of the Material Plane, and they gain the extraplanar subtype if they leave the Material Plane. No creature has the extraplanar subtype when it is on a transitive plane; the transitive planes in the D&D cosmology are the Astral Plane, the Ethereal Plane, and the Plane of Shadow.