Blessing of the Green Glade

You touch a willing creature and invoke the names of the elven goddesses Aerdrie, Hanali, and Sehanine. Before this spell ends, whenever the target casts a healing spell, the number of hit points healed by that spell increases by 1d4. The target also has advantage on saving throws against being frightened until the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the bonus to healing increases to 1d6. When you use a spell slot of 6th level or higher, the bonus to healing increases to 2d4.