Stone Crab (3.5e Monster)

"Thaaat ain't no hill.."

Stone Crabs are immense Crabs infused with the power of the Elemental Plane of Earth by yet another psychotic mage with an axe to grind. Capable of growing to immense size, their ferocious appetites make them trouble for the local ecosystems. Their bodily makeup makes them a rich prize for anyone capable of putting one down, as they also eat many rare metals and minerals. Stone Crabs are roughly 16' across, and weigh up to 16 tons.

Combat
Stone Crabs are ambush predators with little more tactical sense than to Hide until something gets close, and then grab it. They're stubborn too. You really gotta hurt em to make one leave. And by hurt we don't mean wound so much as tear of a limb or two.

Constrict:  A Stone Crab does 4d6+10 with a successful Grapple check.

Improved Grab: If a Stone Crab successfully hits with a Claw Attack it may attempt a Grapple Check as a Free Action without provoking an attack of opportunity. If successful it may Constrict. Stone Crabs receive a +4 Racial Bonus on Grapple Checks.

Immunities: Stone Crab are immune to Poison, sleep effects, paralysis, stunning, Critical Hits, and all mind-affecting effects.

Camouflage: Stone Crabs appear to be made of stone, and in rough, jagged stone areas they receive a +8 Racial Bonus to Hide checks, and may use the Camouflage and Hide in Plain Sight abilities (see page 48 of the Players Handbook).