Dossunlith (3.5e Monster)

''A loose rock seems to fall out of the ceiling, crushing the poor man underneath. A face on the stone block laughs at his fate.''

Dossunlith are capricious and amoral earth elementals which are 5 ft cubes of heavy stone, a grim face apparently carved into one side. The face can shift from side to side depending on which way it is "facing", for it has no mobility of its own with no arms or legs to speak of. Instead it manipulates its personal gravity to fall into place, and crush anything in its way. They aren't inherently evil but many take far too much enjoyment in smashing things underneath their bulk. Some evil spellcasters bind them en masse and set them up as living traps in their dungeons and castles. This fits with the dossunlith's own goals of crushing things, and they enjoy the comfort of having a roof over their heads. Many dossunliths fear moving straight up, lest they are unable to arrest their motion and they fly into the depths of space.

Dossunliths, like gelatinous cubes, completely fill up their square. They speak Terran and weigh 20,000 lbs.

Combat
Due to their unique movement every time a dossunlith moves or attack it must take caution, for they will move the full 150 ft (or 300 ft) until they hit something which stops them. They are at least able to hover in place by setting their personal gravity to zero, and turn in place. Most are set up as living traps and thus have a limited but effective movement ability such as side to side, or from roof to floor and back again.

Crush : As part of movement via Shift Gravity a dossunlith can make a single attack roll against all creatures in its path. It deals 1d6 damage per 10 ft it has fallen (maximum 10d6). It crashes through objects in its way if it deals enough damage to destroy it. Creatures get a Reflex save DC 23 to either get an attack of opportunity (though they still take damage), or jump out of the way into the nearest valid space (negating the damage). The saving throw is Strength based.

If the dossunlith crushes one or more creatures against a surface these creatures are considered pinned and take 1d6 + its Strength in damage each round until they escape the pin with an Escape Artist or grapple check. Doing so successfully moves them to the nearest valid spot and prone.

Dampen Fall : Dossunliths are immune to fall damage. Perhaps fortunately for its victims it takes some of the bite out of their crush ability, capping it at 10d6 after falling 100 ft.

Hardness : Dossunliths have the consistency of stone and have hardness 8. Acid and sonic attacks deal full damage before hardness. Cold and fire attacks deal half damage before hardness. Electric attacks deal one-quarter damage before hardness.

Shift Gravity :  One per round as a full attack action a dossunlith can shift its personal gravity from zero (hovering in place) to any direction. It falls at a speed of 150 ft in the first round, and 300 ft in subsequent rounds if it does not change directions. This movement does not provoke attacks of opportunity, and it may attempt to Crush any creatures in its path when it does. Because its not an actual move speed it has no control over it. It must move the full distance until it hits an obstruction such as a wall, and it can only travel in a straight line.