I was looking at this thread and thinking about other creatures that could fit as Servitors of the Outer Beings (especially the Lesser ones, that might be actually encountered more frequently by players).
It came back to my mind a creature that comes from a very different world and setting: the Jachyra, form Shannara saga (Terry Brooks).

Here are a couple of links, if you never read the Wishsong of Shannara (I actually really enjoyed it quite a few years ago):



This creature has some interesting points in common with the Servitors, in my humble opinion (including the fact -I hope I remember it right- that its masters, aberrations/demonic kind of creatures that openly challenged the gods and other creatures, have been sent to some kind of "prison plane", not unlikely from the Outer Beings, and the jachyra itself was sent back in time well before the time of men -made me think about Carnifex-, but sometimes they are brought magically back).

One cool aspect, that I once used in a D&D adventure, is that Jachira regenerates/nourishes with pain (even its own pain), so I remember I made up a regeneration power that is faster or slower depending on the total hit points of damage that are made during the encounter to any creature, including the Jachyra (something like regenerates each round a *fixed percentage* of the total damage done during last 10 turns or something like that). This makes difficult to kill this monster, unless you deal massive damage in short time (exactly as it was done in the book, BTW).

How do you feel about this?
How would you transpose the Jachyra to D&D system detail (I prefer BECMI, but any system, even outside D&D could be a fair start).
Or do you think that this kinda crossover went too far and wouldn't be appropriate?

Just trying to think how the Servitors could be in practice...

Works for me :)

-Havard

Which monster stats would you propose for this creature?