Cleon
Legend
Sure, "duplicate" is fine.
This might be worth modifying...
Keen Scent (Ex): A shark can notice creatures by scent in a 180-foot radius and detect blood in the water at ranges of up to a mile.
Hmm, yes I suppose it would. I'd reduce the range a bit.?
Come to think of it, if we give the templated creature "Scent Blood" then we ought to give the incorporeal form the same ability.
Anyhow, let's leave that on the back burner for the time being and start on the template.
Transient Golem Duplicate
A transient golem can use its Infusion attack to turn itself into an imitation of any living creature. Its appearance is identical to the creature it is duplicating, but its behaviour may be different. Most noticeably, they always have an obsessive thirst for blood, which they must feed upon to maintain their physical form.
Some transient golem duplicates do not realize they are imposters and sincerely believe they are the creature they are imitating.
Creating a Transient Golem Duplicate
"Transient Golem Duplicate" is an acquired template that can be added to any living, corporeal creature (referred to hereafter as the base creature).
A transient golem duplicate uses all the base creature's statistics and special abilities except as noted here.
Special Attacks
A transient golem duplicate retains all the special attacks of the base creature and gains a blood-draining incorporeal touch attack.
Blood-Draining Touch (Su): ?
Special Qualities
A transient golem duplicate has all the special qualities of the base creature as well as those described below.
Living Construct (Ex): Although a transient golem duplicate gains the type and subtypes of whatever creature it retains some of the qualities of the Construct type. [what shall these be?]
Discorporate (Ex): A transient golem duplicate can turn itself back into a transient golem as a standard action. It becomes incorporeal and loses all this template's abilities. Transient golems only discorporate in dire circumstances, they can become corporeal again by using their Infusion attack once more.
Immunity to Magic: - just copy the golem's.
Lust for Blood (Ex): Some kind of Will check to resist feeding?
Scent Blood (Ex): A transient golem duplicate can notice living creatures in a 60 feet by the smell of their blood. It can detect spilled blood at ranges of up to a mile, and track a bleeding creature as if it had the scent special quality and the Track feat.
Abilities
Same as the base creature, except that its Constitution score may be reduced if it is short of blood (see Blood-Draining Touch, above).
A newly formed duplicate has a Constitution score equal to the Con damage it did to the base creature with its Infusion attack, it use Blood-Draining Touch to increase its Constitution to its full value as quickly as it can.