Maglubiyet
The Mighty One
The Lord of Depths and Darkness

Greater God, Goblin pantheon [Greater]
God of Depths, Darkness, War, Discipline, Rulership

Symbol Bloody axe  
Alignment Lawful Evil  
Shaman Alignment LE, NE  
Plane Gehenna (but fights battles on Acheron)  
Worshippers Goblin and hobgoblin tribes, especially warriors and chieftains  
Race Goblin, hobgoblin  
Sex Male  
Attributes N/A  
Proficiency Groups Warrior, Priest, General 5
Bonus Proficiency Goblin history 2
Preferred Weapon Axe (battle or hand, one must be taken at 1st level)  
Allowed Weapons Any 10
Armor Chain mail or lighter armors (scale mail preferred), no shield -10
Primary Sphere Combat 10
Major Spheres All, Elemental (Earth), Healing, Necromantic (reverse), Sun (reverse) 32
Minor Spheres Charm, Divination, Necromantic, Protection, Summoning, Wards 25
Additional Spells Enchanted Weapon (4th level, as 3rd level Wizard spell), Magic Font (5th level), Reincarnate (7th level) 2
Abilities
  Control Undead at 1/2 level, rounded up 10
  Goblin (or hobgoblin) followers 5
  Spirit powers: ancestor and animal 30
  +2 on loyalty and check checks with goblins or hobgoblins (depending on race) 5
3rd level Expertise with battle axe or hand axe (shaman's choice, must have been the weapon chosen at first level) 3
5th level Incite berserker rage in goblins or hobgoblins (depending on race) 8
  Darkness, 15' radius (1/day)
5 (1/day) + 4 (W4) - 2 (5th level) - 0 (1 power) = 7
7
9th level Shapechange into a Shadow (at will, but with no healing)
15 (base) + 2 (at will) - 1 (9th level) = 16
16
Limitations
  Hit points (d6) and THACO as thief -20
Raiment Conical hat, scale mail, gray-green apparel  
Animal Worg  
Holy Days New moon of Luna (ritual beheadings)  
Notes
Goblin (and more rarely hobgoblin) shamans are often witch doctors
As a Greater God, the shamans of Maglubiyet are based on 140 points rather than the standard 120
The Reincarnation spell will always reincarnate to an goblin (30%), hobgoblin (40%), bugbear (10%) or worg (20%), and is only used on the greatest of warriors
Temples are in natural caverns when possible, shrines made to look like cave mouths when not
Maglubiyet's goblin hordes are locked in perpetual war with Gruumsh's orcish legions on the battle plains of Acheron
Background
Maglubiyet, the Lord of Depth and Darkness, rules over his people with iron fist. Unlike the orcish tribes, all goblins and hobgoblins worship Maglubiyet first, though they may also honor other gods. Maglubiyet keeps a watchful eye on his servant deities, lest one of them usurp his power. Maglubiyet's shamans and witch doctors keep order within the tribes, but rarely lead them directly -- they prefer to guide, rather than rule.

Maglubiyet demands human (or demi-human) sacrifice from his people on each new moon. These sacrifices are always decapitated with a single axe blow, followed by a burnt offering of their heart. After success in battle (regardless of the phase of the moon), sacrifices will be offered up from prisoners that have been captured. Dwarves and gnomes are the preferred victims, but orcs, humans and elves are also welcomed.

Sources
Deities and Demigods 1st printing, p. 109 (original source)
Monster Mythology, p. 49