Add support for Power Word: Shield absorb

[Pahweh]

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

[mrbuurns]

any news on this?

[Krattan]

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