Not sure if this is something you are looking to implement, but I saw Vuhdo is working on a method to implement this here: https://gitlab.vuhdo.io/vuhdo/vuhdo/-/merge_requests/62/diffs

Bump on this feature request, apparently unit aura carries absorb amount since the cata prepatch.
Grid just added support for it michaelnpsp/Grid2@4efe5eb

any news on this?