How to build an Elf Warpriest in Pathfinder? [closed]

Our DM wants to start a new campaign in Eberron. I want to build an Elf Warpriest since all the Asian weapons are up (only for Elves)1.

Which feats should I pick for fighting with a katana (probably with 2 Hands)?

My Warpriest will be the face of the party. I’m some kind of diplomat who’s trying to be a part of the Undying Court.

My katana should be part of my soul and I should know how to be part of aggressive negotiations.

We are starting Level 1. Max Level is something around 9.

My party will consist of a Dwarf Ranger (TWF), a Warforged Magus and a Gnome Wizard (Illusion).

Everything that is published in German is allowed. I think the “Advanced Class Guide” is the latest published material.

We already rolled our Attributes (18, 18, 17, 14, 11, 9)

Attributes example: Str 18, Dex 9 (+2=11), Con 18 (-2=16), Int 11 (+2=13), Wis 17, Cha 14

Feats example:

  1. Weapon of the Chosen
  2. Power Attack, Improved Weapon of the Chosen
  3. Greater Weapon of the Chosen
  4. Vital Strike
  5. Furious Focus
  6. Critical Focus, Devastating Strike

Instead of Power Attack and Furious Focus I thought of replacing them with Toughness and Improved Initiative.

  • Weapon: Katana
  • Armor: Kusari-Gusoku

I thought of taking the feat-path to Weapon Specialization and Greater Weapon Focus, but I don’t think I meet the requirements since the Warpriest does not count as a Fighter taking his normal Talents, right?

I also don’t know which Blessings I should take. I thought of Magic/Weather and Strength/War. Is it possible to use the War blessing effects on yourself?

1 I can use a different class as long as it can heal and fight, without being a real Paladin.