The problem with making a Dvati hivemind is how vulnerable they are if even one of the "twins" die. If they got hit by something like unname, sphere of annihilation or another ability that makes resurrection difficult, then the following paragraph kicks in.
If one dvati twin dies, the other slowly sickens and perishes. Each day that passes after a dvati twin dies, the surviving twin takes 1d4 points of Constitution and Wisdom damage and takes a cumulative -1 penalty on attack rolls, skill checks, and saving throws. The ability damage and penalties remain (and cannot be healed or removed) until the living twin dies or his soulmate returns to life (at which time they immediately disappear). Most dvati prefer to commit ritual suicide if one twin dies without hope of return, as the pain of losing the close bond drives a dvati to the brink of madness.
Well, I also made myself an aleax of myself. As such, not only am I immune from all attacks and damage that didn't originate from me, I also am a construct and am immune to ability damage.
If for some reason one of my bodies DOES die, I don't have to worry about the damage, at least, and I'll just make more bodies. I might take a -1 penalty to things, but the chances of that happening are...slim.
[edit] Hmm. Also, I used the Fusion/Astral Seed trick to merge with a hagunemnon. If I take the various oozes' special quality that makes any slashing damage split me in half (with half hp, but my regeneration 50 should fix that right up), then would that mean I just have to scratch myself and I'll split? That would make body replacement much faster and easier.
