Umm... Horrors aren't Namegivers, right? So it couldn't produce other Named Horrors, and even if it could, Named Horrors are supposed to be unique, right?

However, I would let it reabsorb its servitors and add their Force to its own.

Also, I would give it the Sacrifice metamagic, and allow it to sacrifice anyone its servitors possessed, without needing any tools or rolls to do so (describe it as the person's blood being forced out of every orifice and pore in their skin).

This would serve two purposes. Firstly, it could use the blood of people to lessen the Drain of any spells the person the Named Horror is possessing, and for said meatbody to summon blood spirits. Secondly, it would allow it to pose a serious threat to the world, because the more people its Servitors kill, the more Servitors it gets, and once it gets enough people possessed by them, it can attempt a Great Ghost Dance-style blood ritual that is specifically designed to create a bridge between the Earth and the Horrors metaplane, kicking off the Scourge quite a bit early...

On another note, it should pollute Astral Space in a manner similar to cyberzombies or people with the Astral Hazing SURGE effect. Possibly even dealing (Background Count)M damage to any mages who cast spells in the area without using the Filtering metamagic.

Also, I agree that it would almost certainly agree to leave with the PCs. It has access to the memories of the person being possessed, so it would know that it is being extracted, and that it can't get the Scourge going while he's being monitored by the Azzies. Once it gets extracted, however, it might very well make a run for the Redmond Barrens, where it would have its servitors possess a building full of squatters, and the local gangs, before spreading out into the corporate world, at which point the bizarre murders are going to start making news...

A quick summary (please feel free to correct/comment/crticize -- everyone's input has been amazing so far):

The Saotome corporation, a major Yamatetsu subsidiary and operator of the world-famous Saotome Aquadome, is experimenting with new marketing techniques using paracritters. They have hired an Aztechnology marketing guru for an extended consultancy. Antonio Grandin (an Initiated Puma Shaman) and his research assistant have been on-site for three weeks, studying the aquadome's menagerie, which includes a nomad held in techno-magical "stasis."

An incident occurs, which frees the nomad. (N.B.: this needs to be fleshed out.)

The Force 18 nomad (who shall be temporarily known as "Joe," after a particularly sadistic boss I once had), upon being freed from captivity, immediately splits into two separate Force 9 nomads: one attacks Grandin and the other attacks his research assistant. Although he's a competent mage Grandin was caught completely off-guard (coughplotdevicecough). He and his assistant both succumb to the nomads' attacks and become possessed. From there, the "infestation" easily spreads across the facility.

In the case of Grandin's possession, because 'Joe' was subtly 'altered' by its prolonged captivity, the act of possessing him results in the creation of a Free Spirit. The same did not happen with the research assistant because Grandin is also an Initiate and had a unique relationship with the spirit before it was freed.

The runners are hired by a Johnson secretly working for Deus. Deus has not yet launched the Arcology Shutdown in my campaign and is collecting resources: the AI has plans which require an ad-man of Grandin's abilities. The team is hired to break into the aquadome, extract Grandin and return him to the Johnson.

At the time they're hired, the world doesn't yet know that anything's wrong at the aquadome--it's a high-security facility anyway. Saotome execs know that something's gone seriously wrong at their facility and are launching an investigation of their own, which may affect the runners' plans eventually.

(If the whole 'Deus' angle doesn't work in your campaign, have Saotome hire the runners. They want the mystery of their suddenly-silent aquadome solved before their parent megacorp--Yamatetsu--catches wind of any problems.)

Note that with all the death and destruction, the aquadome will liekly have a background count. Maybe 3-4 in places, depending on how bad things are and how long they have been going on.

As a first draft, what do you think? I haven't chosen his metamagics yet and I haven't assigned ratings to his skills or spells, but I wanted to start fleshing him out a bit.

------------------------

Antonio Grandin, (Shaman of Puma, Grade 3 Initiate)

Okay, here's a first draft of Grandin's background and personality:

Here's take two on Grandin's stats. Still tweaking a bit.