I’m in the process of creating a villain for a campaign, but—due to multiple templates—I’m unsure what her final creature type should be. I’ll explain:
The base creature is a forlarren (fey type). Because her sire is a very powerful demon, I decided to give her the half-fiend template (which would make her a native outsider). Easy enough, so far.
Now comes the tricky part. The forlarren discovered a ritual that would allow her to unlock her fey potential, by sacrificing (i.e. murdering) her mother and a number of other faerie creatures. This effectively allowed her to go through a metamorphosis, giving her the fey creature acquired template (which would make her a fey). Would this combination make her a fey (augmented native outsider), or would the outsider type override the acquired fey type?
I'd go with both! She is fiendish and thus a native outsider. She's also a fey per acquisition. It is a small point of weakness and if the players can figure it out, then they deserve what benefit they can exploit from it.
Thank you for the feedback. There is some justification for multiple creature-types within the rules (granted, it's usually with multiple humanoid types, although—as an example—an aasimar with the Scion of Humanity racial trait counts as both a humanoid and an outsider), so I think that'll be the way I'll swing it. As MurphysParadox mentioned, it might be a nice way for the PCs to potentially get a leg-up on the forlarren (which may help them against a rather difficult foe).
Out of curiosity, does anyone know where PFRPG talks about applying multiple creature-types? My searches have yielded nothing.