Helm of the Mender

This helm was one of 7 crafted by the Solar Knights, who were renowned for their ability to keep entire armies alive with their superlative healing skills.
You may use the power of this helm as a bonus action on your turn. If you do, the next healing spell you cast heals for its full amount. In addition, you may divide the total healing amount as you choose among any number of creatures. You cannot use this ability again until you finish a long rest.