Greater god

ARMOR CLASS: -2
MOVE: 36" / 36"
HIT POINTS: 400
NO. OF ATTACKS: 2
DAMAGE/ATTACK: 20-200/20-200
SPECIAL ATTACKS: See below
SPECIAL DEFENSES: See below
MAGIC RESISTANCE: 50%
SIZE: L (600' tall)
ALIGNMENT: Chaotic evil
WORSHIPPER'S ALIGNMENT: Chaotic evil
SYMBOL: Image of the god
PLANE: Prime Material Plane (distant planet)
CLERIC/DRUID: Nil
FIGHTER: As 16+ HD monster
MAGIC-USER/ILLUSIONIST: 23rd level in each
THIEF/ASSASSIN: Nil
MONK/BARD: Nil
PSIONIC ABILITY: I
 

S: 25 (+7, +14)	I: 22	W: 23
D: 21	C: 23	CH: -4
Com:	-	-

                                                                        Clerics                Raiment                                                       Sacrifice/Propitiation

Sphere of Control	Animal	M	F	N-H	Head	Body	Color(s)	Holy Days	Frequency	Form	Place of Worship
air	n/a	X	-	X	bare	n/a	yellow-orange	midsummer's day	annually	human	caverns

This god has a scaled,
elongated body,
a lizard's head and maw,
and taloned lizard claws.
It also has 200 tentacles projecting from its body that give it the ability to sense all things around it.
It is able to strike twice per round and also attack magically.

At will,
it can teleport anywhere <revise/link: teleport w/o error?> in the <Prime Material Plane>.
Hastur regenerates 5 hit points per melee <edit> round,
and can summon 2-20 Byakhee to aid it in battle.
It cannot be magically controlled.
Any being trying to attack the god must make a saving throw versus fear. <revise: save vs. spell, as if the spell was a fear spell?> || <revise: morale check?>

Hastur is half-brother to Cthulhu,
and like him Hastur has been imprisoned by the star-shaped Elder Sign.
He lies in a crypt at the bottom of Lake Hali near the alien city of Carcosa.
Hastur exists partly on the PMP (and this part is imprisoned in the crypt) and partly on the Elemental Plane of Air (thus he is immune to cold and the vacuum of space).
<para-elemental plane of vacuum?? revise all references to vacuum??>
Hastur is never more than partly on the Prime Material Plane and is therefore not completely solid.
This accounts for his great size.

Any time the name "Hastur" is spoken,
there is a 25% chance that Hastur will hear and send 1-4 Byakhee to slay the speaker.
If the Byakhee are defeated,
there is a 25% chance that Hastur himself will appear to destroy the blasphemer.
 

Created By August Derleth

Hastur, same deal. The Gable Window, by Derleth. I think I've read this one, but I'm not sure.

Also, "The Return of Hastur".
Hastur was first created by Ambrose Bierce, where he's the god of shepherds.
The D&DG Hastur is minimally based on Derleth's version, largely original.

- Clore, DF1E