Celestial Companion

Transmutation
Level: Artificer * 2, Druid * 2, Hunter * 2, Paladin * 1, Ranger * 2, Shaman * 2, Sorcerer */Wizard * 2, Summoner * 1, Warlock * 2
Components: V, S, DF/M
Casting Time: 1 Standard Action
Range: touch
Target: animal companion, eidolon, familiar, or mount
Duration: 1 minute/level (D)
Saving Throw: Will negates (harmless)
Spell Resistance: yes (harmless)
  You bestow divine protection on your companion. The target gains spell resistance equal to 5 plus half your Caster Level against spells and spell-like effects produced by evil creatures. The target also gains a +1 Sacred Bonus on saving throws and DR 5/evil or silver. Creatures under the effects of this spell often take on a celestial appearance, such as golden feathers or a radiant aura, but they are not truly celestial creatures.