The problem with alter self, is "You assume the form of a creature of the same type as your normal form." That allows them to impersonate other undead, but not the living.
I was talking about AD&D with the detect illusion reference. The spell's in the 1E Player's Handbook and saw a fair amount of use in my early campaigns. I don't think there's an SRD equivalent in 3rd edition.So that leaves disguise self, which allows the Will save for interaction. I don't see a "detect illusion" spell. Is there a lesser spell that allows you to see through illusions in 3.5?
How's this?
Death Site Dependent (Su): An amiq rasol is mystically bound to the site of its demise. If it ever strays more than 100 miles from it, it is immediately returned to the spot of its death, as if a word of recall had been used. An amiq rasol gains turn immunity while at its death site.
Rejuvenation (Su): An amiq rasol cannot be permanetly destroyed through simple combat: The “destroyed” spirit will restore itself in 24 hours. Even the most powerful spells are usually only temporary solutions. An amiq rasol that would otherwise be destroyed returns to its old haunts with a successful level check (1d20 + amiq rasol's HD) against DC 16. As a rule, the only way to get rid of an amiq rasol for sure is to locate its remains and give them a proper burial.
Skills: 60
Vampires have a +8 racial bonus on Bluff, Hide, Listen, Move Silently, Search, Sense Motive, and Spot checks.
Vampire spawn have a +4 racial bonus on Bluff, Hide, Listen, Move Silently, Search, Sense Motive, and Spot checks.
Do we want to borrow any of those racial bonuses?
Feats: 4
Vampires gain Alertness, Combat Reflexes, Dodge, Improved Initiative, and Lightning Reflexes as bonus feats.
Vampire spawn get Alertness, Improved Initiative, and Lightning Reflexes as bonus feats. Do we want to grant the amiq rasol any of these?
I'd have the Vampire Spawn's racial bonuses.
Oh, and I'd like it to have at least some token nautical skills, such as Profession (sailor) to reflect its former existence.
Of those, I'd go for giving it Combat Reflexes, Improved Initiative and Lightning Reflexes as bonus feats. I was happy to drop Dodge, since it verges on useless.
For its regular feats, Multiattack and Weapon Focus (bite) seem good choices, as does Combat Reflexes if we decide against having it as a bonus feat.