| MattR1986 |
Ok so to be clear:
Kitsune favored class option:
Bard: Add a +1/2 bonus on Bluff checks to lie and a +1/2 bonus on Diplomacy checks to gather information.
Would stack with:
The synthesist also gains access to the eidolon’s special abilities and the eidolon’s evolutions...Skilled (Ex): An eidolon becomes especially adept at a specific skill, gaining a +8 racial bonus on that skill. This evolution can be selected more than once. Its effects do not stack. Each time an eidolon selects this evolution, it applies to a different skill.
and
Ability Increase (Ex): An eidolon grows larger muscles, gains faster reflexes, achieves greater intelligence, or acquires another increase to one of its abilities. Increase one of the eidolon's ability scores by +2. This evolution can be selected more than once. It can only be applied once to an individual ability score, plus 1 additional time for every 6 levels the summoner possesses.
I couldn't find anything that specified what type of bonus favored class bonus was, unless the type of bonus is "favored class"
| CriticalQuit |
The favored class bonus is an untyped bonus. Untyped bonuses stack.
HOWEVER, the +8 racial bonus would not stack with another racial bonus, namely the Agile racial feature which grants a +2 racial bonus to Acrobatics.
Ability increase isn't even related, because it's not a bonus to the skill, it's a bonus to the ability score.
| MattR1986 |
By strict interpretation I would have thought untyped, but wanted to be sure since the favored class bonuses are listed under specific races so are specific to races (even though there is some cross over in the abilities). As for the latter thing it seems that is untyped and would stack with anything as well.
edit: however, also by looking at the races they specifically say "racial bonus" for all the abilities and never do on favored class, so I'm guessing they do indeed stack with everything.