No sale, at least for now, on the Lightbringer substitution levels- it doesn't seem quite right for her. A few questions though:
1. To fill empty spell slots, we need only an hour of prayer, right? Or do we need a full night's rest? A Cure Blindness would be pretty useful...
2. Can Tessa tell the injuries of those who suffered Con damage, possibly with a Heal check? once she can see again, anyway- I don't imagine she can do much diagnosis blind...
3. Because I can't find it right now- how are we doing HP? would it be 4.5 or 5 for a cleric level?
Level-up will be Cleric 6; adds 1 2nd level and 1 3rd level spell and 1 effective caster level, +1 BAB, +1 to all saves; +1 each to Concentration, Heal, Knowledge- religion, Knowledge- arcana, Spellcraft; no stat increase or feats this level