Your phantom is impressionable and easily influenced by contact with new spirits.
Prerequisite(s): Ability to cast speak with dead, phantom class feature.
Benefit(s): When you cast speak with dead, you can choose not to gain any of the normal effects of the spell, instead temporarily merging the summoned spirit into your phantom, exchanging your phantom's current emotional focus and all related abilities for a new emotional focus of your choice. This new emotional focus persists for 10 minutes per class level you have, after which your phantom's original emotional focus returns.
(Emphasis mine)
I am wondering just what "all related abilities" entails.
1. For which skills the phantom gains skill ranks or grants Skill Focus?
2. Which saves are good and bad?
3. Bonus feat (or additional power some get in place of a bonus feat)?
4. All the powers listed as (Su) or (Ex)?
The simplest way to rule is just the (Su) and (Ex) powers. Otherwise, there's a lot of recalculating to do. However, I want to be sure, because each emotional focus is a well-crafted package, and slapping the powers on a phantom which doesn't have the accompanying skill focus or feat (like Intimidate skill for the Fear phantom) may lead to poor mixes. Also, some of the powers listed separately and given instead of feats are also important to the phantom's theme, like the Despair phantom's:
Power from Despair: The phantom gains a +2 bonus on attack and damage rolls against creatures that are shaken, frightened, panicked, cowering, or subject to effects such as aura of despair or crushing despair.
It's hard to imagine the Despair emotional focus without this. But this is in place of a bonus feat, so if this is allowed, it seems the bonus feats should be allowed as well.
I was unable to find this covered yet, so any help or input is appreciated!
It looks to me like everything from the original focus should be removed and all the stuff from the new focus should be added, as if the phantom had that focus all along.
That does mean a lot of recalculating.