Beatific Mist

You summon forth a small amount of celestial mist, which condenses to soothing cool water on your hand. This water is filled with healing energy, and as it coats your hand, you can use an action to touch an ally and allow its healing energy to soothe and mend injuries.
This cantrip can be cast a number of times equal to your proficiency modifier per short or long rest. 

• Applying blessed water to a wounded creature heals for 1d4 + (Spellcasting Ability modifier) Hit points.
• If applied to undead or fiends the celestial water acts like acid, dealing acid damage instead of healing. 

As your levels increase, the spell's healing potency increases as well. At 5th level the healing power increases to 2d4, then 3d4 at 11th level and 4d4 at 17th level.