When you finish with a fight and go forward, walk or run away from that area so it goes outside of your view, but then quickly return towards that same area, before you completely reach the space where enemies dead bodies or remains are - you can see various spell effect firing off in empty air, as if there was someone there. Most of those are healing spell effects but there are some others too.
It is most noticeable in front of the Black Cove though ive noticed it in the western and northern areas, so far.
You can take some time before returning back.
First time i noticed it, i lured the new group of Orcs in front of the Black Cove onto those new mines. Then i went to the entrance and had a separate fight with that group. After that, when i was returning towards town, when i came close to the place of the first fight i saw various spell effect firing off above the ground where the mines were, which is where most of the first orcs died.
When i ran back to the entrance i saw a few healing spell animations firing off in the air too.
It mostly stays at the edge of the screen. I think they start happening before the camera can actually come over that area so you will mostly notice them firing off just at the edge of the screen as you are moving towards some place of finished battle.
