"There are... hmm, I'll say eight elements with healing applications. Earth, Water, Fire, Stone, Adamant, Shine, Lightning, and Ice. Earth healing is the most common and the cheapest, but you have to understand what you're doing to use it properly. I had to learn a lot about how human bodies work to be able to heal as well as I do, even though I'm reasonably powerful for an Earth. My healing mostly helps with fixing injuries. Water healing can't do much for those, but it cures illness and poisoning. Stone and Adamant can be used to mend or reinforce bones. Fire healing won't do much for serious immediate problems, but it makes healthy people healthier and slows aging, and someone who's already recovering from something will recover faster with a little Fire, and you don't need to have much more than a broad clue what you're doing in order to use it. Shine can heal anything up to and including someone who has been dead for a few minutes, no skill required, as long as there's enough left of the patient's brain - but it takes immense amounts of power, so it's reserved for people who really need it. Most humans with even very strong Shine affinities don't have enough power to do Shine healing without using an elemental."

Earth glances at Lightning, who contributes, "Lightning doesn't really heal, but as long as somebody isn't too dead for Shine, I can keep them alive no matter what's wrong with them. At least until I run out of power. It takes a lot."

"And Ice can freeze someone to preserve them indefinitely in whatever state they're in, which takes less power than maintaining them with Lightning and doesn't need to be maintained once it's done, but in about one of a hundred cases the unfreezing kills them."