GROME  (lord of the earth, king of the land below the roots)
GRUMBAR (GRUUM-bar) (Gnarly One, King of the Land Below the Roots, Boss of the Earth Elementals) (God of Elemental Earth)

Lesser god

ARMOR CLASS: -5
MOVE: 18" (48")
HIT POINTS: 335
NO. OF ATTACKS: 1
DAMAGE/ATTACK: 8-80
SPECIAL ATTACKS: See below
SPECIAL DEFENSES: Nil
MAGIC RESISTANCE: 50%
SIZE: L (20')
ALIGNMENT: Neutral
WORSHIPPER'S ALIGN: Neutral
SYMBOL: Petrified oak
PLANE: Elemental Plane of Earth
CLERIC/DRUID: See below
FIGHTER: 18th level ranger
MAGIC-USER/ILLUSIONIST: See below
THIEF/ASSASSIN: Nil
MONK/BARD: Nil
PSIONIC ABILITY: VI
 
S: 25 I: 10  W: 10 
D: 15  C: 25  CH: 13 
Com: - -

The king of the earth elementals, Grome can cross any body of water without penalty, can use any spell involving plants, animals, the earth, or things affecting the earth as a 50th level spell caster, and can summon 1-20 16 HD earth elementals to fight by his side at any time.

Grome looks like a huge gnarled and earth-colored oak, though he seems much more dense and powerful than any plant could be. No barrier, magical or otherwise, can withstand the force of his fist.
 
 

                                                              Clerics             Raiment                                                             Sacrifice/Propitiation
Sphere of Control Animal M F N-H Head Body Color(s) Holy Days Frequency Form Place of Worship
elemental earth n/a - - X n/a n/a dark brown n/a varies favors anywhere

Grome has few mortal worshippers, but earth elementals and creatures living under the ground pay him homage.
 
< Melnibonean Mythos AD&&D DDG >

Grumbar: Grumbar is the largest and most powerful of the true
elementals of Earth. Grumbar's body takes up a great portion of
the plane about him, such that some have described him as a
mountain-sized juggernaut. Grumbar is said to be physically part
of the plane near him so that only a small portion of him is distinguishable
from the earth around him. This may be true, as only
those who have been granted an audience with Grumbar have
ever found the great being. Those air-breathers who have been
fortunate enough to gain such a meeting are issued into a pocket
of air facing a mile-high wall. Grumbar's face (which is different
for each visitor) is said to materialize in that wall. Presumably other
elemental pockets exist for audiences w/ creatures that are
common to other elemental planes.

    Grumbar can raise and MOVE stone with his thought and can
build citadels overnight. He does not bargain, so the traveller who
seeks him out should be prepared to agree to his terms, or
decline and never return. Grumbar is a Greater God, the full
force of earth and all the might within it. He all the powers
afforded to a Greater Deity in Appendix IV on page 124.

Source = Manual of the Planes