Do levels in the Rivethun Emissary prestige class increase the level of your familiar? (aka Spirit Channeler Emissary on D20)

[El_Arquero]

I've read it and read it again, and nothing in the description leads me to believe that levels in this class, that is focused on familiars, increase the level of your familiar. It increases your spellcasting, but caster level is not the same as class level for determining familiar level. Many, many Shaman class features also scale with this prestige class, but the Spirit Animal class feature from the Shaman is never specifically mentioned as scaling. I'm sure that RAI it should scale but I can't find anything RAW that backs that up.

D20 Link Here

[Majuba]

*casts raise dead*Just have to say I agree with you, this should progress the familiar abilities. Probably won't ever be errata'd, so seems reasonable to proceed.

[Zepheri]

Spirit Animal (Ex): A Rivethun emissary strengthens her bond to the spirit world by channeling additional divine power through her familiar or spirit animal. If she had a non-spirit-animal familiar before becoming a Rivethun emissary, she can select a single shaman spirit (Pathfinder RPG Advanced Class Guide 37). Her familiar gains the spirit animal ability associated with that spirit

Spirit Bond (Su): A Rivethun emissary’s training creates a powerful bond with a specific spirit. Her Rivethun emissary levels stack with any shaman levels she has for the purpose of determining the effects of her spirit class ability, spirit magic class ability, what hexes she qualifies for, and the effects of any hexes with level-dependent abilities.

If a Rivethun emissary has neither the spirit class ability nor a spirit animal, she can select a single spirit from those available to the shaman upon gaining her 1st level of Rivethun emissary. She gains this spirit’s spirit ability. At 8th level, she also gains this spirit’s greater spirit ability.

Your familiar it's transform into a spirit and he progress by this prestige class only; unless you have some shaman lvs

[Sandslice]

The Rivethun Emissary grants the Spirit Animal class feature. As such, it stacks per standard rules for pet stacking.

Note that if you have the familiar class feature instead, the levels still stack, but you still use the other class's familiar rules except as noted.

[Belafon]

Pathfinder 1st edition Core Rulebook page 82 wrote:

Levels of different classes that are entitled to familiars stack for the purpose of determining any familiar abilities that depend on the master’s level.

Advanced Class Guide page 47 wrote:

The shaman’s spirit animal also grants her special powers. This ability uses the same rules as the wizard’s arcane bond class feature and is treated as a familiar (see pages 78 and 82 of the Core Rulebook), except as noted below.

...
Levels of different classes that are entitled to familiars stack with shaman levels for the purpose of determining any spirit animal abilities that depend on the shaman’s level.