Here is the variant Radiant Servant of Pelor for Mina.
Radiant Servant of Aduros
As Radiant Servant of Pelor, with the following changes:
- Decrease hit die to d4. (per cloistered variant)
- Add Decipher Script, Speak Language, and all Knowledge skills to class skill list. (per cloistered variant)
- Increase skill points per level to 6+Int. (per cloistered variant)
- No additional armor, weapon, or shield proficiencies are gained. (per cloistered variant)
- Extra Greater Turning: The Radiant Servant loses this ability and gains Sanctified Turning instead.
- Sanctified Turning: Whenever the Radiant Servant performs her turn undead ability, she also gains protection from undead creatures equivalent to a Sanctuary spell.
- Bonus Domain: The available domains are changed to any of Aduros's domains (Healing, Good, Fire, Protection), or the Courage or Renewal domains (see Spell Compendium). (I think those would be appropriate for a phoenix guy?)
I kept the undead-nuking aspect of the class intact because I figured it would be useful in the campaign and it also makes sense for a god of life to be interested in blowing them up, but if SD wants to rework that into something more protection-oriented I can think about doing that.