Cool! I just started running my game about a month ago and the party haven't met the nuns yet (they still have a day or so travel through a severe blizzard in a forest infested with undead and insane fungus controled beasts.)
Using this archtype for 2 lvl 1 npc nuns supporting a town with many injured and a water/ food shortage, spells like prestidigitation, mending, identify, and floating disk greatly help them support the town, this class was perfect for them. Thanks!