A155: There's a table in Savage Species about which type takes over. Undead wins over Outsider. Plus, I don't think you qualify for it, anyway.
As a Star Elf, I do. Augmented subtype in srd says you would just be Outsider (Augmented Undead, Augmented Humanoid, Incorporeal).
Again, look at Savage Species. You can't make an Undead into an Outsider.
1) Latest printing applies. That'd be the 3.5 monster manual.
2) Core trumps noncore. That'd be the 3.5 monster manual
3) Specific overrides general. That'd be the otherworldly feat
4) The type pyramid only applies to templates, not to feats.
A155: There's a table in Savage Species about which type takes over. Undead wins over Outsider. Plus, I don't think you qualify for it, anyway.
As a Star Elf, I do. Augmented subtype in srd says you would just be Outsider (Augmented Undead, Augmented Humanoid, Incorporeal).
No. You'd be Undead (augmented Outsider, Incorporeal).
However, once you take the feat, you can no longer be the target of the template as you have become Outsider (native). Since you have to take the feat at level 1, and Ghost is an acquired template that comes after you die, I would say that the feat has precedence.
It is an invalid combination.
Character creation steps (from the phb).
1)CHECK WITH YOUR DUNGEON MASTER
2)ROLL ABILITY SCORES
3)CHOOSE YOUR CLASS AND RACE
4)ASSIGN AND ADJUST ABILITY SCORES
5)REVIEW THE STARTING PACKAGE
6)RECORD RACIAL AND CLASS FEATURES
7)SELECT SKILLS
8)SELECT A FEAT
So I select my race as ghost in step 3, and then later on, in step 8, I select my feat to be otherworldly. Completely valid. If you want to do it after your first class level you'll need a psiref or retraining or something, but totally doable.
In addition, if you have RHD, you can take regional feats at 3hd rather than at your first hd.
The main reason I like otherworldy on ghost is that your rejuvenation can no longer be overcome by anything, and you now don't have to worry about turning or whatever. You also retain immunities to fort saves, ability damage, ability drain, and energy drain, and most of the nastiest anti-incorporeal stuff is targeted against undead.
