"Who wants to earn a role play point and read the intro (with feeling)?" "...and give Santa a speech thanking you guys?" Let them do narration and that sort of thing!!

No need for a list of buffs. She can create them on the spot - it's not like there's a lot of choices. Can she have haste? ---no, she cannot cast anti-buffs on enemies ---she's a WHITE mage

Mana Pool or whatever she wants to call it I really think it should be one per cast because it's easiest to remember and keep straight but here's some ideas to ignore...

Superficial vs deep vs internal (1,2,3) Self vs Near vs far (1,2,3)

A heart heal from across a room would be six mana points.

for a serious wound - including a broken bone, surely a potion would take some time to fully heal it - surely they'd still be ranked down a bit - limping, maybe requiring assistance to walk, an arm that doesn't fully work