Landwyrm, Mountain (CR 22)

Colossal Dragon
Alignment: Usually lawful evil
Initiative: +3; Senses: Listen +27 and Spot +47
Languages: Draconic, Dwarven, Giant, and Common


AC: 31 (-8 size, -1 Dex, +30 natural), touch 1, flat-footed 31
Hit Dice: 40d12+440 (700 hp)
Fort +33, Ref +21, Will +29
Speed: 30 ft., burrow 10 ft.
Space: 30 ft./20 ft.
Base Attack +40; Grapple +72
Attack: Bite +48 melee
Full Attack: Bite +48 melee and 2 claws +46 melee
Damage: Bite 4d18+16/19-20, claws 4d6+8
Special Attacks/Actions: Frightful presence, snatch, thunderous roar
Abilities: Str 43, Dex 8, Con 32, Int 13, Wis 25, Cha 20
Special Qualities: -
Feats: Awesome Blow; Blind-fight; Cleave; Great Cleave; Improved Bull Rush; Improved Critical (bite); Improved Initiative; Improved Overrun; Improved Sunder; Multiattack; Power Attack; Snatch; Stealthy; Track
Skills: Climb +46, Concentration +31, Diplomacy +45, Gather Information +7, Hide +23*, Intimidate +25, Knowledge (local) +21, Knowledge (nature) +21, Listen +27, Sense Motive +27, Spot +47, and Survival +31
Advancement: 41-48 HD (Colossal)
Climate/Terrain: Temperate mountains
Organization: Solitary pair, or cluster (3-6)
Treasure: Standard

Source: Draconomicon

Combat

Frightful Presence (Ex): 200-ft. radius, HD 39 or fewer, Will DC 35 negates.

Snatch (Ex): Against Large or smaller creatures, bite 4d8+16/round or claw for 4d6+8/round.

Thunderous Roar (Su): Once per day a mountain landwyrm can emit a thunderous roar. This is the equivalent to a greater shout spell. Caster level 20th.