Random Hungry Dead (Ghoul and Ghast)

Myths are replete with creatures from beyond the grave which hungers for something the living can give them, be it flesh, blood, souls or something else. For simplicity we'll call them the Hungry Dead but you know them as Ghoul, Ghast and other names.

I forgot what specific D&D book this one is from.

If you'd ask my players even going back to the days of high school, if there is one low-level monster I loved to use quite a bit, they would name you not the goblin or the orc but the disgusting Ghoul, followed by other similar undead creatures. There is just something lovely and macabre about these kind of monsters which set them apart and put them above the simple zombie or skeleton. Maybe its their hunger for flesh, mobility and animalistic cunning. There is just something disturbing and vicious in these monsters, not to mention the fact they much more ancient roots than the modern shambling zombie. There is something more ancient, more evil about them.

The tables use Labyrinth Lord as a loose basis.

How much Hit Dice does it have?

d4	Hit Dice
1-2	It has the usual amount of Hit Dice a Ghoul has.
3	The hunger has given it greater power. It has +1 Hit Dice.
4	This creature most probably has fed for years. it has +2 Hit Dice.

What kind of monstrosity is it?

d4	Nature
1-2	Reanimated Corpse: This hungry dead is a reanimated body in some stage of decay. Roll on the Reanimated Corpse table.
3	Hungry Ghost: Technically speaking, this is a form of ghost but it manifest as a solid, monstrous tulpa-beast or it has reanimated a corpse (possibly not even its own). Roll on the Hungry Ghost table.
4	Possessed Corpse: Similar to the above, but whatever is animating that corpse is not the original inhabitant of that rotting pile of meat but rather some evil spirit. Roll on the Possessed Corpse table.

d4	Reanimated Corpse
1-2	Rotting Corpse: The hungry dead looks like a rotting corpse, as one would expect, albeit a warped and hungry-looking one.
3	Feral Beast: The hungry dead is a warped, feral thing which has lost most traits one would associate with humanity. Its hands are like talons and its mouth is full of fangs or maybe its face has become warped to look like some animal skull.
4	Bloated Corpse: The creature is a fat, blubbery and pale thing. It gain +1 HP/hit dice but lose 10’ of movement speed.

d4	Hungry Ghost
1-2	The Hunger: The creature is impossibly lean and pale. It looks hungry and sickly. Its mouth is twice the size of what it should and filled with needle-like teeth. The first time it deal damage to a target in combat it deals an additional 1d4 damage.
3	Mutilated: The hungry dead appears to be a mangled corpse torn apart by wild beasts or hacked apart by weapons. Smoke trails off from its wounds where blood would flow.
4	Goblin-Ghost: The hungry dead looks more like some goblin or imp than a ghoul. Roll on the Goblin-Ghost and Spell table.

d4	Possessed Corpse
1	Skeletal: Most of the flesh has rotten away on this monstrosity yet it still hunger. A malign glow erupt from its empty eye socket and mouth. Despite its decrepit appearance, it is quite powerful. The creature take half damage except from bludgeoning weapons or magic.
2	Warped: Its limbs are too long. It has too many joints. Or maybe it has grown vestigial organs a human would never have. Its flesh is unnaturally hardy, making it take half damage except from slashing weapons or magic. Roll on the Warped table.
3	Bestial: The creature has become warped and twisted into some animalistic abomination, more beast than human. Roll 1d2 times on the Animal table.
4	Hardy Demon: Whatever fiend inhabit this corpse is a powerful one. The creature turn as if it had twice the amount of Hit Dice. Reroll on this table, ignoring this result.

d4	Warped
1	Spiky: Jagged bone spurs erupt from its dead flesh. Increase its damage by one category.
2	Bone Plates: The bone of the hungry dead protrude not as spikes, but as armor. Improve its AC by 1.
3	Jointed Limbs: It moves more like a spider than a human. Increase its movement speed by 20' and can walk on walls.
4	Vestigial Limbs: It has an extra attack.

d4	Animal
1	Jackal: Increase its damage by one category.
2	Vulture: Flight speed equal to land speed.
3	Locust: Surrounded by buzzing locusts that deal 1d4 damage/round.
4	Maggot: Breath weapon of foul, flesh-eating maggots that deal 2d6 damage. This ability is used instantly if its damaged twice in the same round as its flesh burst open. It takes 1d4 rounds to recharge.

d6	Goblin-Ghost
1	Unnatural Skin: The skin of the hungry dead has taken on a truly unnatural hue. Roll on the Unnatural Colors table.
2	Long Tongue: Its tongue is a long, disgusting appendage which function like a whip in combat.
3	Hairy: The hungry dead has filthy fur, with a 50% chance of it being an Unnatural Color.
4	Bulging Eyes: The eyes of the creature are huge things which erupt from it’s face, able to look in different directions at once. There is a 50% chance it is an unnatural color.
5	Bat Wings: A pair of bat wings erupt from it’s back, giving it a clumsy flight half its ground speed.
6	Reroll 1d4 times on this table, ignoring this result.

d6	Spell
1	Mind Control: By chanting blasphemous songs, the Hungry Dead can cast Charm Monster.
2	Madness: By howling madly, the Hungry Dead can cast Confusion.
3	Warp Domain: By uttering vile curses, the creature can cast Hallucinatory terrain.
4	Change Form: By turning on itself three times, the Hungry Dead can use Polymorph Self.
5	Curse of the Dead: Reciting dread incantations, the creature can cast a reversed Bless spell.
6	Dead Companion: Swearing unholy oaths, the Hungry Dead can cast Animate Dead.

d20	Unnatural Color
1	Sickly green.	6	Light purple.
2	Sickly yellow.	7	Red.
3	Orange	8	Green.
4	Light blue.	9	Orange.
5	Light green.	10	Purple.