This page is an attempt to come up with two feats which are thematically similar to Vow of Nonviolence + Vow of Peace, but which are not so restrictive in their nature. The two original feats are summarized and my proposed alternatives are included as well

Original

Vow of Nonviolence

Requirements

  • Must not harm any humanoid or monstrous humanoid creature
  • May not deal ability damage, or use death effects

Benefits

Spell DCs
+4 to saving throws for spells and special abilities you use which do not deal damage, bestow negative levels, cause ability damage, etc.

Vow of Peace

Requirements

  • Must not harm any living creature (undead and constructs do not count)
  • May not deal ability damage, or use death effects
  • May not use non-damaging spells to incapacitate or weaken enemies while allies kill them

Benefits

Calming Aura
Creatures within the 20ft Will Save (DC 10 + Level / 2 + CHA) or be affected by Calm Emotions
Diplomacy
+4 to Diplomacy Checks
Armor Class
+6 to AC (+2 natural, +2 exalted, +2 deflection)
Manufactured Weapons
Manufactured weapons that come in contact with you (DC 10 + Level / 2 + CON) shatter against your skin–leaving you unharmed

Alternative

Vow of Diplomatic Resolution

This is intended to be slightly worse than Skill Focus, which gives +3 in any skill. But it is powerful in that it grants access to Vow of the Restrained Fist.

Requirements

None

Benefits

Diplomacy
+2 to Diplomacy Checks

Vow of the Restrained Fist

Requirements

  • Vow of Diplomatic Resolution

  • Must not harm any living creature except in one of the following scenarios:

    1. When battling creatures of the following types:

      Type
      Undead
      Aberration
      Constructs
      Ooze
      Demons
      Devils
    2. In the last extreme defense of your life, the life of your allies, or the lives of the innocent
  • May not use death effects

Benefits

Calm Emotions
Calm Emotions once per day
Armor Class
+2 to exalted AC