Originally Posted by Agent_0042
So where's the Elemental Plane of Acid? Elemental Plane of Sonic? Heck, in standard cosmology, Positive and Negative have their own planes situated similarly to Air, Earth, Fire, and Water, so they're arguably more of an element than Acid, Cold, Electricity, or Sonic. D&D elements don't really make sense, and what's considered an element is entirely arbitrary.
There is no "Earth" damage. Acid takes its place. Sonic is just... weird. But if Positive Energy were to be added, it would make sense for it to heal. Healing is almost entirely in the purview of Divine magic.