Ghost Livestock

These strange creatures resemble animal skeletons wrapped in hazy, transparent ghost flesh. They're the same as normal livestock in their care and behavior, and are raised for their intensely magical meat and byproducts.

The only difference between ghost livestock and their mundane cousins is in how they reproduce. They don't breed. After being slaughtered the bones must be scoured and sheltered from the sun. If the skeleton is complete, undamaged, and perfectly clean a new ghost animal will rise in three nights. It won't be the same creature as before, though it shares the same skeleton.

No one knows where the come from, only how to care for them.