Beast of the Week: Demon Dog

Last week, Tim of Hero Press asked, following my posting Slimer from Ghostbusters, if I was gonna do the Stay Puft Marshmallow Man next.  Well, there's still one more week before Halloween, I just might.  But for this week, I present the Ghostbusters demon dog for D&D, clones, simulacrums, propane and propane accessories.

Demon Dog*
AC: 5 (15)
HD: 5+2**
Move: 150 (50)
Attacks: 2 claws, 1 bite
Damage: 1d6/1d6/1d8
No. Appearing: 1d4+1 (1d4+1)
Save As: F5
Morale: 10
Treasure Type: L+N (V)
Alignment: Chaotic
XP: 575

Demon dogs are large creatures from the Lower Planes with bodies shaped like a cross between a frog and a hairless dog.  They have horns on their heads and glowing red eyes.  Demon dogs are usually encountered in small packs, each with a cryptic name related to its role in the ritual (see below).  Each demon dog in a pack chooses a victim that it hunts and attempts to possess using its magic jar ability (once per day).  While hunting, it can become invisible to all but the target.  While in possession of a mortal, the demon dog gains the following powers: polymorph between demon dog form and the victim's true form, levitate, and cause fear, each three times per day.   Once each dog in the pack has possessed its target, the dogs come together and perform a ritual that opens a Gate, allowing a powerful extra-dimensional being or demon to enter the Prime Plane.  The demon dogs then serve as the demon's guardians and servants.  When killed, a demon dog turns to stone, and if in possession of a victim at the time of death, the statue crumbles within one Turn, releasing the victim.