Blessing of Hestia

a number of times equal to your proficiency bonus when you roll healing, you can make it max instead of healing. When you place a buff on someone, all of their attacks deal an extra 1d4 fire damage. This stacks with each buff you place on them. Your attacks now deal half damage.

You also get access to the ability to cast certain spells at certain levels using the mental stat of their choosing for their spell casting modifier. You can cast each only once per long rest.

3: Aid

5: Mass Healing Word

7: Aura of Life

9: Mass Cure Wounds