Could use some help with my
Curse of Strahd character's 6th level magic secrets. She is the main healer in the party (Barb., Rogue, Wizard, Veng.Paladin), and I had originally planned on taking Aura of Vitality (the Paladin says she doesn't plan on taking it), but with the Paladin smiting being the only radiant damage against all those undead, I thought perhaps Spirit Guardians would be more helpful. Since both are concentration, I would probably only take one.
I [will] have all of the other bardic healing spells (Healing Word, Cure and Mass Cure Wounds).
I'm thinking of taking Guiding Bolt with my other secret, but am open to other suggestions. Sacred Flame would be appropriate, but probably not effective against dexterous vampire spawn, and Greenflame Blade and Eldritch Blast look great, but don't really fit with the character.
She has really gotten into (re: obsessed) with the whole religion thing since coming to Barovia, and I'd like to give her some payoff on that, without turning her into a pseudo-cleric (a Lite-Cleric, if you will

). Bard spells cover most of my social and control spells, so I'd like something that can help out in a battle aside from insulting monsters to death (which I
HAVE done, thank you very much)
Thanks for any help. If you don't want such specific questions on your Guide page, let me know and I'll be happy to move it.
--Scott