Dragon, Sand Great Wyrm (CR 27)

Gargantuan Dragon (Earth)
Alignment: Always chaotic neutral
Initiative: +0; Senses: blindsense 60 ft., darkvision120 ft., low-light vision, keen senses, and tremorsense 60 ft.
Languages: Draconic

AC: 43 (-4 size, +37 natural), touch 6, flat-footed 43
Hit Dice: 37d12+252 (486 hp); DR: 20/magic
Fort +47, Ref +27, Will +40
Speed: 30 ft., burrow 20 ft., fly 150 ft. (clumsy)
Space: 40 ft./15 ft.
Base Attack +36; Grapple +62
Attack: 1 bite +46, 2 claws +41, 2 wings +41, 1 tail slap +41, 1 crush +41, 1 tail sweep +41
Damage: 1 bite 4d6+14, 2 claws 2d8+7, 2 wings 2d6, 1 tail slap 2d8, 1 crush 4d6, 1 tail sweep 2d6
Special Attacks/Actions: Breath weapon 22d4 (DC 36)
Abilities: Str 38, Dex 11, Con 25, Int 22, Wis 26, Cha 22
Special Qualities: Immunity to fire, Haboob, Dispel water, Wall of sand, Choking sands, Sandstorm, Frightful Presence DC34, SR 29
Feats: #Feats: 13
Skills: Skill points: 228
Advancement: 37+ HD
Climate/Terrain: Warm Deserts
Organization: Solitary (1 dragon, any age), clutch (1d4+1 wyrmlings, very young, young, juvenile, or young adults), family (pair of mature adults and 1d4+1 offspring)
Treasure/Possessions: Double Standard

Source: Sandstorm

Breath Weapon (Su): A sand dragon has one type of breath weapon, a cone of grit similar to a flaywind.

Spell-Like Abilities: At will - haboob; 3/day - dispel water, wall of sand; 1/day - choking sands, sandstorm.

Skills: Concentration, Hide, Intimidate, Listen, Move Silently, Sense Motive, Spot, and Survival are considered class skills for sand dragons.

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.