[@FlitterFaux] That's a rather detailed backstory, but that looks fine to me. Anyways onto feats.

Profession Medic lets you heal an ally by 2 hearts if both you and the target do nothing for one post. If done in battle you're still vulnerable to being attacked, so careful with it.

Gift of Life will only cost MP, cannot use your Hearts, as spells that do use Hearts are often very dark magics. It costs 5MP per 1 heart you're healing at maximum 3 hearts. It can only target one ally at a time.

Spell Life Taken Life Given is pretty dark magic type stuff. Based on story I'm sure that's not what you're going for, so I'll let you figure this out.

Also, because you have 2 Stamina, and 6 Magic, you also get an additional 1 Technique, and 3 Spells.

I suggest you make a few things to help yourself survive or fight back should you come under fire.

EDIT: Also my rate is in the link in my Signature.